Paccar Multiplexed (2012) Electrical System

Section

MultiplexedElectricalSystem
ServiceManual

Number

Date

2012MultiplexedElectricalSystemService

Manual—(P30-1011)

PM819023/KM815057

08/14/2012

©2012PACCARCorporation

CondentialityNotice:Thisdocumentandtheinformationcontainedhereinisproprietary.Itshallnotbe
reproduced,copiedordisclosed,inwholeorinpart,orusedformanufacturewithoutthewrittenpermission
ofPACCAR.Youareherebynotiedthatanydisseminationofthisinformationisstrictlyprohibited.

ii

PM819023/KM815057(08/14/2012)

TableofContents

Safety.............

AppliesTo...........

ExplodedView.........

What'sNew..........

GeneralInformation

SpecialTools..........

Specications.........

HowItWorks..........

Maintenance..........

Disassembly/Assembly....

Inspection...........

Troubleshooting........

Glossary............

Index.............

1

2

3

4

5

6

7

8

9

10

11

12

13

14

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iii

iv

PM819023/KM815057(07/06/2010)

1

1

ImportantNotes............1-2

Safety

PM819023/KM815057(08/14/2012)

1-1

1

ImportantNotes

ThesimulatefunctionwithinESAcanprovidea
valuablediagnosistool.Toensuresafeoperation,
certainCECUoutputsarenotaccessiblefor
simulationsuchas:cruisecontrol,engineoil
pressureandtheparkbrakeswitch.

Simulationofgaugesisalsonotpermittedifthe
engineisrunning.

ReplacingtheCECUresultsintheodometer
beingreset.T akeappropriateactiontorecordthe
vehiclemilespriortoremovingtheCECU.

CAUTION

Interruptingthecommunicationorpowersupply
duringacontrolunitreashcouldresultin
hardwaredamage.

ESArecognizeswhenasoftwareupdateis
requiredonaconnectedvehicle.Ifforsome
reasontheuserchoosesnottoreashthecontrol
unit,ESAtriggersawarningdisplay.TheLCD
backlightingofthespeedometerandoutsideair
temperatureblinkfor1minute.Thewarningis
triggeredateverykey-onofthevehicleuntilthe
requiredupdateisperformedtoalerttheoperator
orothertechniciansthatavehiclereashis
required.

ESAautomaticallyidentiestheversionofCECU
hardwarewhenconnected,andonlypermits
softwaredownloadsthatareapplicableforthat
controlunit.Softwareversionsarenotbackwards
compatible;avehicleisrenderedinoperativeif
aCECUwithoutthecorrectsoftwareversionis
installed.

InstrumentationServiceInformationdescribing
howtoremove,disassemble,andreinstall
instrumentationcomponentsislocated
onServiceNet.Beforeattemptingany
instrumentationrepairs,thetechnicianshould
haveacompleteunderstandingoftheprocedures
describedinServiceNet.

Thismanualcontainsservicemanualinformation
coveringvehiclesequippedwithsoftwareversion
"CECU3withChassisNode"(P30-1011).For
vehicleswithpriorCECUsoftwareversions(such
as:"CECU3withChassisNode"(P30-1009),
CECU3(P30-1008),ICU(P30-1003),and
CECU/CECU2(P30-1002))refertoearlier
publications.

Whenreplacingachassisnode,disconnect
thebatteriesanddonotreconnectthemuntil
nodeinstallationandallwiringconnectionsare
complete.AnewchassisnodeandtheCECU
needtobepoweredupsimultaneouslyduring
thenode'srstpowercycle;otherwiseafault
codemessagewillappearinthemaininstrument
clusterbetweenthespeedometerandtachometer.
ThismessageindicatesthattheCECUisnot
recognizingthepropercommunicationwiththe
chassisnode.

NAMUX4incorporatessoftwareintheCECU
alongwithsoftwareintheinstrumentcluster.
Thesesoftwareversionswilloftenbelinked
togetherwhichwillrequirebothunitstoget
updatedshouldtheothergetupdated.ESAwill
prompttheuserifsucharequirementisneeded.

ChecktheprogrammenuwithinESAtoseeif
aninoperativefeatureisdisabled.Thisisvery
importantwhendiagnosinganinoperativephysical
gaugeonaCECUequippedvehicle.Thegauge
mayhavebeenpreviouslydisabled.

1-2

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2

2

MultiplexingOverview.........2-2

Models–BuildDates..........2-2

AppliesTo

PM819023/KM815057(08/14/2012)

2-1

2

MultiplexingOverview

Thismanualprovidesserviceinformation
coveringtrucksequippedwiththemultiplexed
instrumentationsystem.Beforeattemptingto
makeservicerepairs,thetechnicianshould
beknowledgeableaboutthesystemdesign,
components,operationandtroubleshooting
proceduresfordiagnosingmultiplexed
instrumentationproblems.

Howcommunicationworksinamultiplexsystem:
Eachmajorsubsysteminthetruck’selectrical
systemisoperatedbyacontrolmodulethatsends
andreceivesdatatoandfromacentralhub
computer.Thecentralhubcomputeriscalledthe
CECU(CabElectronicControlUnit).Sincewe’re
intothethirdgenerationnow,wesometimescall
itCECU3.

TheCECUreceivesdatarelatedtocontrollingthe
variousdevicesoftheelectricalsystem.Itthen
makesdecisionsbasedonthatinputandsends
informationtoeachofthesubsystemsystem
controlmodules(nodes)aboutwhatthatnode
shoulddowiththecomponentsitcontrols.

Models–BuildDates

Identifyingwhichcontrolunitisinthevehiclehelps
determinewhatfeaturesarepresentandalsoaids
introubleshooting.

Thisnewgenerationincorporatesmuchofthe
samearchitecturefrompreviousdesignswith
addeddatacommunicationswithmorecontrol
modules.Thesoftwarehasbeenupgradedto
incorporateinterlockstoensuresafety,maximize
vehicleperformanceandsimplifydriverinteraction.

Control

Unit

ICUQ21-1029-X-XXXP30-1003-XXXPB:357,378,379,385,386

CECU/CECU2Q21-1055-X-XXX/

CECU3Q21-1076-X-XXXP30-1008-XXXPB:325,330,337,348,387

ChassisNode

CECU3with

ChassisNode

HardwarePartNumberSoftwareVersionModels

KW:C500,T600,T800,W900,

Off-Highway

PB:365,367,384,386,388,389

KW:C500,T440/T470,T660,

T800,W900,Off-Highway

PB:387

KW:T2000

PB:325,330,335,340

KW:T170,T270,T370,T700

PB:365,367,384,386,388,389

KW:C500,T440/T470,T660,

T800,W900,Off-Highway

PB:365,367,384,386

KW:T660,T800

KW:T680

Q21-1075-X-XXX

Q21-1076-X-XXXwith

Q21-1077-X-XXX

Q21-1076-X-XXXwith

Q21-1077-X-XXX

P30-1002-XXX

P30-1009-XXX

P30-1011-XXXPB:579

EngineEmissions

Level

1998,20042005-2006

2007

20102010-present

20102010-present CECU3with

20102010-201 1

20102011-present

ProductionBuilt

Dates

2007-2009

2008-2009

2009

2-2

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2

ControlUnitIdentication

Controlunitidenticationcanbemadeusinga
fewmethods:

•SearchingusingtheElectronicCatalog(ECA T)

•ConnectingusingtheElectronicService
Analyst(ESA)

•MenuControlSwitch(MCS)oftheinformation
display

UsingECATorESAaretheeasiestandmost
exactwaysofdeterminingthetypeofcontrolunit
inthetruck.

ElectronicCatalog(ECAT)Identication

ECATprovidesapartslist“asbuilt”andBillof
Materialsinformationforeachspecictruck.
Thecatalogissearchable,andcontainsthepart
numberandidenticationofthetrucksinstrument
panelcontrolunit.

•ICUPartNumberQ21-1029-X-XXX

•CECUPartNumberQ21-1055-X-XXX

LineitemtenofthisControlUnitInformation
windowdisplaysthecurrentVehicleSoftware
Version.ThisdetailsthecurrentCECUsoftware
andprogrammingdatethatispresentlyinstalled
onthevehicle.

Uponconnection,ESArecognizesifasoftware
updatehasbeenissuedforthecontrolunitwithin
theconnectedvehicle.Ifanupdateisrequired,
ESApromptsthetechniciantoperformtheupdate
operation.

•CECU2PartNumberQ21-1075-X-XXX

•CECU3PartNumberQ21-1076-X-XXX

•ChassisNodePartNumberQ21-1077-X-XXX

Theblankdigits(denotedby"X")intheabovepart
numbersrepresent:

•"-X"isthehardwarerevision.

•"-XXX"isthesoftwarebootloaderversion.

ElectronicServiceAnalyst(ESA)Identication

ConnectingusingESAbringsupacontrolunit
informationwindow.Inthiswindow,thesixth
lineitemistheControlUnitTypeandidenties
whetherthetruckhasanICUorCECU.Italso
detailsthevariantoftheCECU.

MCSIdentication

Forvehiclesequippedwiththeinformationdisplay ,
controlunitidenticationispossibleviatheMenu
ControlSwitch(MCS).UsingtheMCSknob,
selectthe"TruckInformation"menu.Usethis
menutolookupthe"CECUSWVer."Software
versionP30-1002-XXXcandenoteeitheraCECU
orCECU2.

•ICUSoftwareP30-1003-XXX

•CECUSoftwareP30-1002-XXX

•CECU2SoftwareP30-1002-XXX

•CECU3SoftwareP30-1008-XXX

•CECU3withChassisNodeSoftware
P30-1009-XXX

•CECU3withChassisNodeSoftware
P30-1011-XXX

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3

3

ControlUnitLocation.........3-2

ExplodedView

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3-1

3

ControlUnitLocation

CECULocations

Theheartofthemultiplexedinstrumentation
systemistheCECU.Theunitislocatedinthe
centerofthedash,beneaththecupholders.

TypicalCECULocations(Kenworth)

1.AMOTmodule

2.AllisonTransmission

3.CabECU

4.ABSECU

TypicalCECULocations(Peterbilt)

1.AMOTmodule

2.AllisonTransmission

5.ELSAmplier

6.DriverDoorController

7.PassengerDoorController

3.CabECU

4.ABSECU

5.ELSAmplier

6.DriverDoorController

7.PassengerDoorController

3-2

PM819023/KM815057(08/14/2012)

ChassisNodeLocations

Thechassisnodeislocatedbelowthedriverside
door.

TypicalChassisNodeLocation

3

1.ChassisNode

NOTE

ChassisNodesandconnectorsarepaintedover
withframepaint.Toreleasetheconnectors,it
willbenecessarytoscrapeawaythepaintto
accessandreleasetheconnectorlockinglever.

PM819023/KM815057(08/14/2012)

3-3

3-4

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4

4

SoftwareP30-1011Features......4-2

What'sNew

PM819023/KM815057(08/14/2012)

4-1

4

SoftwareP30-1011Features

NOTE

Softwareversionsarenotbackwards
compatible;thismanualcontainsservice
manualinformationcoveringvehicles
equippedwithsoftwareversion"CECU3with
ChassisNode"(P30-101 1).Forvehicles
withpriorCECUsoftwareversions(suchas:
"CECU3withChassisNode"(P30-1009),
CECU3(P30-1008),ICU(P30-1003),and
CECU/CECU2(P30-1002))refertoearlier
publications.Avehicleisrenderedinoperative
ifaCECUwithoutthecorrectsoftwareversion
isinstalled.

ThemostnotablechangetoNAMUXisthefactory
programmedinterlocks.Interlocksaredened
asparametersthatmustbevalidatedbeforea
functionwillengage.Forexample,thesystemwill
notallowthevehicletomoveiftheparkbrake
switchhasnotbeende-activated.

TheMenuControlSwitch(MCS)nowhasthe
'back'functionasadedicatedbuttononthemenu
controlswitchonthedash.Itisnotamenu
selectionintheprogram.

P30-1011featuresfewerhardwiredcircuitsand
morecommunicationsovertheCANnetworks.

Thefaultmessagingcapabilitieshaveimproved
withthisnewrelease.Theinformationtothedriver
ismorecompleteandcanprovidethedriverwith
generalactionitemsforeachwarningicon.

Theprogramitselfhasimprovedcapabilitieswith
regardtotripinformation.Thereare4individual
tripodometersthattheusercancustomizetot
theirneeds.

Ifthereisadatacommunicationfailure
betweentheCECUandInstrumentClusterthe
ClusterDisplaywillshowamessageindicating
communicationfailure.Thisisintendedtoalertthe
driverthattheInstrumentClusterisnotdisplaying
thegaugesaccuratelyanditindicatesaphysical
failureontheI-CAN.

NewSystems

Briefoverviewofsomeofthenewlyintroduced
systemsofthelatestsoftwareversion.

SteeringWheelControls(cruiseandradio)

Themultiplexedsteeringwheelisacarry-over
designfromotherPACCARmarkets.It
communicatesontheC-CANlineforaudioand
cruisecontrolinputsfromtheoperator.

Radio

TheradioisnowontheC-CANdatabus.

VirtualGauges/Navigation/TelematicsUnit
(optional)

Thisunitprovidesvehicleinformationtothe
operatorandreceivestheinformationfromthe
V-CAN.Thedisplayprovidesrealtimeinformation
intheformofgauges.Itisalsoconnectedtothe
C-CANforaudiooutput.

RearSleeperRadioControls(optional)

Therearsleeperaudiocontrolscommunicates
signalsfromthecontrolpanelinthesleeperto
allowtheoccupanttocontroltheaudiofromthe
sleeper.

HVAC

Allairconditioninginputsarecommunicatedtothe
controllerthroughtheC-CAN.InputfortheHVAC
systemmaycomefromsensorsusedbythe
enginecomputerorcabcomputer.Forexample,
theoutsideairtemperaturesensorismountedto
themirrorandthesignalmustbesentthroughthe
doorcontrolmoduleandthecabcontrolmodule
beforebeingreceivedbytheHV ACcontroller.

ElectricOverAirSwitches

ElectricOverAir(EOA)switchesinitiateelectrical
signalstoactuateairvalvesinordertoactivate
anddeactivateairfunctions(suchas:suspension
dumps,differentiallocks,PTOswitches,trailer
switches,etc.).

4-2

ThereareatotalofeightavailableEOAgeneral
functionswitcheswithfouradditionalhardwired

PM819023/KM815057(08/14/2012)

lifter/pusheraxleswitches.Theeightgeneral
switchesareinputsintotheCECUwhilethefour
hardwiredswitchesarewireddirectlytotheair
solenoidswithnosoftwareinterlocksorCECU
control.

FordetailedinformationontheEOAinterlocks
refertoElectricOverAirSwitchInterlocksonpage
8-11inthe"HowItWorks"sectionofthismanual.

ExteriorLightingSelfTest

TheExteriorLightingSelfT est(ELST)isintended
tobeoperatoractivatedandusedtoenhancethe
vehiclepre-driveinspection.

Wheninitiated,theELSTtogglesbetweentwo
exteriorlightingsequences.TheELSTteststhe
functionalityofcertainexteriorlights.

TheELSTcanbeactivatedfromadashswitch
thatisaccessiblefromoutsidethecaborbythe
optionalremotekeylesskeyfobtransmitter.

4

CabDimmer

Thecabdimmerswitchisamomentaryup/down
dashswitchthatallowstheusertoraiseorlower
thedashbacklightingilluminationlevels.

Thevehiclehasadaytimebrightnesssettingthat
isindependentofthenighttimebrightnesssetting.

DoorControls

TheDoorControlSystem(DCS)operateswith
CECUelectricalarchitecturetoenabletheuserto
raise/lowerthedoorwindows,lock/unlockdoor
locks,adjustmirrorposition,andactivatemirror
heat.

BodyCAN

Thereisadedicatedcommunicationline(B-CAN)
forcustomerinstalledcontrolunits.Thisdataline
maybeusedbybodybuilderstoaddlikeprotocol
controlunits.Formoreinformationregardingthe
B-CAN,refertotheappropriateBodyBuilder
Manual.

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4-4

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5

5

ServiceResources..........5-2

GeneralInformation

PM819023/KM815057(08/14/2012)

5-1

5

ServiceResources

DisabledGauges

WiththeCECU,disablingacomponent
turnsthecomponentoffcompletely.The
disabledcomponentisremovedfromallsignal
transmissionsinordertoallowtheotherfeatures
onthevehiclefastercommunication.Adisabled
gaugewillnotfunctionorcommunicatewiththe
controlunit.

NOTE

Checktheprogrammenutoseeifaninoperative
featureisdisabled.Thisisveryimportantwhen
diagnosinganinoperativegaugeonaCECU
equippedvehicle.Thegaugemayhavebeen
previouslydisabled.

Whenaservicetechnicianinstallsanoptional
gaugeinthemultiplexedinstrumentationsystem,
thenewlyinstalledgaugewillinitiallybedisabled.
Becausethegaugeisnotfactory-installed,the
technicianmustprogramtheCECUtomonitorit.
UntiltheCECUisprogrammed,thelinkbetween
theCECUandthegaugeistermed“disabled”–
thatis,theCECUispreventedfromdetecting
errors,andalsofromlogginganddisplaying
diagnostictroublecodes(DTCs).

ToprogramtheCECUandenablegauges,select
“Program”.Ifthegaugevalueis“Disable”,change
itto“Enable”.

OncetheCECUisprogrammedandthelinkto
thegaugeis“enabled”,theCECUmonitorsit,
diagnoseserrorslike“shorts”and“opens”,logs
DTCsfortroubleshooting,anddisplaystheDTCs
onESA’s“Diagnose”screen.

CommunicationDiagram

Communicationdiagramsillustratethesignal
transmissionsbetweencomponents(switches,
sensors,controlunits,CANlines,etc.)necessary
toperformsystemfunctions.

ControllerAreaNetwork(CAN)Communication

Thefollowingdiagramprovidesanexampleofthe
communicationlinesandsignalpathsofatypical
multiplexedvehicle.Determiningthecorrect
communicationlinesthatprovideasignaltothe
CECUandwherethesecircuitsinterconnect,
helppinpointpossibletroubleareas.Sometimes
theseconnectionsbecomeloose,havebentor
misalignedpins,andvisuallyinspectingthemmay
helpidentifywhyotherelectricalproblemsmay
beoccurring.

NetworkDescriptionWhat’sontheNetwork

V-CANVehicle

powertrain

D-CANDiagnosticDiagnosticconnector

F-CANFrame

components

I-CANInstrumentsInstrumentcluster

C-CANCab

B-CANBodyBuilderAftermarketdevices²

E-CANEngineInput

A-CAN³Aftertreatment

¹NotalltelematicsunitswillberecognizedbytheCECUarchitecture.

²TelematicunitsconnectedtotheBCANwillnotberecognized

bytheCECU.AnydevicesplicedintoaCANwirewillnotbe

recognizedbytheCECUarchitecture.

³ForvehiclesbuiltwithPACCARMXengine.

Transmission

Engine

ABS

telematics(optional)¹

ChassisNode

PACCARDisplayorRadio

Doorcontrollers

HVAC

RemoteSleeperAudio(optional)

Multifunctionsteeringwheel(optional)

Turbo

HumiditySensor

EGR

NOxsensors

DoserControlUnit

Aftertreatmentcontrolunit

5-2

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CANCommunicationInterfaceDiagram

5

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5-3

5

CECUDetails

Theheartofthemultiplexedinstrumentation
systemistheCECU.SeeControlUnitLocations
onpage3-2forillustrationsdepictingthephysical
positionofthecontrolunit.

TheCECUreceivesdatarelatedtocontrollingthe
variousdevicesoftheelectricalsystem.Itthen
makesdecisionsbasedonthatinputandsends
informationtosubsystemsystemcontrolmodules
(nodes)aboutwhatthatnodeshoulddowiththe
componentsitcontrols.

CECU

CECUConnectorIdentication

Thereare5electricalconnectorsthatpluginto
theCECU.

•ConnectorA-9pins

•ConnectorB-24pins

•ConnectorC-52pins

•ConnectorD-40pins

•ConnectorE-9pins

ForanillustrationofthesideviewofaCECU
showingwheretheharnessconnectorsattachinto
thecontrolunit,seeCECUFigure.Thisgure
identiesconnectorpositiononthecontrolunitas
wellasindividualconnectorpinlocations.

Forconnectorfaceviewsattheharness
connectorsthatplugintotheCECU,seeCECU
ConnectorFaceViewsFigure.Theseconnectors

CECUConnectorFaceViews

allbranchfromtheinstrumentpanelharnessthat
routesbehindthedash.

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5

CECUComparisonChart-(Pinout)

ConnPinNumberCircuitFunction

A

B

1CVSGpower

2Power-battery

3Cabdomelampoutput

4Menucontrolswitchpower

5Ground

6Menucontrolswitchground

7Dash/panelillumination

8Auxiliarybacklighting

9Power-battery

1MenucontrolswitchencodeA

2MenucontrolswitchencodeB

3Menucontrolswitchenter

4Exteriorlightingselftestinput

5Ignitioninput(Start)

6Domelampinput

7Seatbelttelltale

8Cruiseset

9Cruiseresume

10Back-upalarmmute

11Retarderselect1

12Retarderselect2

13Clutchswitch

14Headlampsactive

15PTOset

16PTOresume

17Enginefanoverride

18Regenenable

19Inhibitregen

20ABSoffroad

21Markerlamp(Tractor)

22L VDinput

23TransferCaseEngaged

24Reserve-passengerseatoccupancysensor

ConnPinNumberCircuitFunction

C

1Powersupply+5Vsensors

2Analogreturn

3Electricoverairswitch1input

4Notused

5Spareanaloginput

6Airpressuretransducer-primary

7Airpressuretransducer-secondary

8Airpressuretransducer-application

9GaugeSensor1

10Airlterrestriction

11GaugeSensor2

12Dimmerswitch(up)

13Dimmerswitch(down)

14CVSGdata

15CVSGreturn

16Outsideairtemperature(Pre-2010engines

only)

17Electricoverairswitch3input

18Electricoverairswitch4input

19Electricoverairswitch5input

20Electricoverairswitch6input

21Transmissionoiltemperature-main

22Electricoverairswitch7input

23Pyrometer(Pre-2007enginesonly)

24Electricoverairswitch8input

25Analogreturn

26Electricoverairswitch2input

27Spare

28Spare

29Spare

30GaugeSensor3

31Wiperresistorladder

32Turnsignalresistorladder

33L VDbatteryvoltage

34GaugeSensor4

35C-CANground

36Notused

37C-CANhigh

38C-CANlow

39Trailerstoplamprelay

40D-CANhigh

41D-CANlow

42D-CANground

43B-CANhigh

44B-CANlow

45B-CANground

46Markerash

47Windshieldwasherpump

48DRLinterrupt

49Markerlamp(Trailer)(Kenworth)

50FuelLevelSenderSelect

51Headlampash

52Headlamphigh/low

PM819023/KM815057(08/14/2012)

5-5

5

ConnPinNumberCircuitFunction

D

E

1Power-ignition

2Generalpurposewakeup

3Power-accessory

4Hazard

5Brakeswitch

6Sparedigitalinput

7Parkbrakeactive

8Foglamps(1stset)

9MCSbackswitch

10Cruiseon/off

11Interaxlelocktelltale

12Parklamp(Kenworth)

13TractorABStelltale

14TrailerABStelltale

15Checkenginetelltale

16Stopenginetelltale

17Windshieldwiper(fast)

18Secondaryfoglamps

19Editabletelltale1

20Editabletelltale2

21Editabletelltale3

22Spare

23Editabletelltale5

24Editabletelltale6

25Editabletelltale7

26Spare

27Spare

28Dashbuzzer1A

29Dashbuzzer1B

30Dashbuzzer1C

31Dashbuzzer2

32F-CANhigh

33F-CANlow

34I-CANhigh

35I-CANlow

36I-CANground

37V-CANhigh

38V-CANlow

39V-CANground

40V-CANlowterminated

1Idletimerrelay

2Windshieldwiperrelay

3Ignitionrelay(Start)

4Cabmarker/clearancelamprelay

5Ground

6LVDBus1

7Parklamprelay

8Trailermarker/clearancelamprelay

9Mirrorheatrelay

5-6

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5

ChassisNodeDetails

Thenodethatreceivesinformationfromthe
CECUtocontrolexteriorlighting,Electricover
Aircontrols,andwindshieldwipersiscalledthe
chassisnode.Thechassisnodeservesasa
bidirectionalconduitforbothinformationand
control.

ChassisNodeFigure

ChassisNodeConnectorIdentication

Therearethree21-pinelectricalconnectorsthat
plugintotheChassisNode.

•ConnectorA-21pins

•ConnectorB-21pins

•ConnectorC-21pins

ForanillustrationofthesideviewofaChassis
Nodeshowingwheretheharnessconnectors
attachintothecontrolunit,seeChassisNode
Figure.Thisgureidentiesconnectorposition
onthecontrolunitaswellasindividualconnector
pinlocations.

Forconnectorfaceviewsattheharness
connectorsthatplugintotheChassisNode,see
ChassisNodeConnectorFaceViewsFigure.

ChassisNodeConnectorFaceViews

PM819023/KM815057(08/14/2012)

5-7

5

ChassisNodeComparisonChart-(Pinout)

ConnPinNumberCircuitFunction

A

B

1Leftheadlamplowbeamoutput(PWM)

2Power-ignitioninput

3Ground

4Batterypower-1

5Neutralswitchinput

6Fuellevel1input

7Rightheadlamphighbeamoutput

8Backupswitchinput

9Fuellevel2input

10Reverseloads(Peterbilt)

Snowplow(Kenworth)

11Sparedigitalinput

12Spareanaloginput

13Leftheadlamphighbeamoutput

14(reserved)

15Spareanaloginput

16Batterypower-2

17(reserved)

18F-CANhigh

19Rightheadlamplowbeamoutput(PWM)

20(reserved)

21F-CANlow

1Batterypower-3

2Rightturn/stoprearoutput(Tractor)

3Powersupply+5Vsensors

4Leftturnfront/sideoutput

5Fuellterrestrictioninput

6Transmissionoiltemperature-auxiliaryinput

7Rightturnfront/sideoutput

8Spareanaloginput

9Generaloiltemperatureinput

10Batterypower-4

11Spareanaloginput

12Reserveforremoteaccelerator

13Leftturn/stoprearoutput

14Reserveforclutchwearsensor

15Driving/foglampsoutput

16Leftturntraileroutput

17Ammeterinput

18Batterypower-7

19Batterypower-5

20Leftturnfront/DRLoutput

21Rightturnfront/DRLoutput

ConnPinNumberCircuitFunction

C

1Analogreturn

2Electricoverairswitch1output

3Electricoverairswitch2output

4Transfercaseoiltemperatureinput

5Electricoverairswitch3output

6Electricoverairswitch4output

7PTOoiltemperatureinput

8Electricoverairswitch5output

9Electricoverairswitch6output

10Rearaxletemperatureinput

11Electricoverairswitch7output

12Electricoverairswitch8output

13Frontaxletemperatureinput

14DRLheadlamps(Perterbilt)

15Batterypower-8

16Center/steeraxletemperatureinput

17Windshieldwipermotorcontroloutput

18Trailerenginecoolantvalve

19Batterypower-8

20Rightturntraileroutput

21Back-upalarmcontroloutput

5-8

PM819023/KM815057(08/14/2012)

7

7

ParameterPartNumbers........7-2

Specications

PM819023/KM815057(08/14/2012)

7-1

7

ParameterPartNumbers

ParameterpartnumbersaresearchableinECAT
andallowadealertodeterminewhatparameters

CECUParameters

ParametersareusedtoidentifytotheCECUwhat
featuresarepresentonavehicle.Theparameters

weresetatthefactory.Also,ifaddinganew
featuretoavehicle,thecorrespondingparameter
needstobeprogrammedtotheCECUand
enabled.

canbealteredbyadealertoenable,disable,or
assigncertainfunctionalitytothatfeature.

CECUParameter

PartNumber

Q30-1024-000ABSinstalled01ParametercontrolsDTC'srelatedtoABSsystem.

Q30-1024-001AfterTreatmentRegeneration

Function

Q30-1024-002ATCinstalled01Currentlyhasnoeffectonfunctionality.Parameterwillbeusedtodetermine

Q30-1024-003RetarderRangeMap04Parameterisusedtodenetheenginebrakelevels.

Q30-1024-004ClutchSwitchPresent11Parameterisusedtodetermineiftheclutchswitchisconnectedtothe

Q30-1024-005CruiseControlSetSwitch

AccelorDecel

Q30-1024-006CruiseControlPresent01Parameterisusedtodetermineifcruisecontrolisinstalledandcontrolsthe

Parameter

Description

Min.

Value

Max.

Value

Value0/DisabledmeansABSisnotinstalledandDTC'saredisabled

Value1/EnabledmeansABSisinstalledandDTC'sareenabled.

01Parameterisusedtoallowinformationfromtheenginetoturnonthe

telltalesforthehighexhausttemperature(emissionsystemtemperature)

andregenerationlter.

Value0/DisabledmeansnotallowclustertodisplayDPFandHEST

telltalesoncluster.

Value1/EnabledmeansallowclustertodisplayDPFandHESTtelltaleson

cluster.

thepresenceoftractioncontrol.

Value0/DisabledmeansATCisnotinstalled.

Value1/EnabledmeansATCisinstalled.

Value1meansenginebrakeswitcheshavetwobrakinglevels0%,100%.

Value2meansenginebrakeswitcheshavethreebrakinglevels0%,50%,

100%.

Value3meansenginebrakeswitcheshavefourbrakinglevels0%,33%,

66%,100%.

Value4meansenginebrakeswitcheshavethreebrakinglevels0%,33%,

66%.

CECU.

Value0/Disabledmeansclutchswitchisnotinstalled(ithasanautomatic

transmissionorishardwiredtoengine).

Value1/Enabledmeansclutchswitchisinstalled(ithasamanual

transmissionandiswiredtothecontrolunit).

01Parameterisusedtodenethecruisecontrolset/resumeswitch

functionality.

Value0/Disabledmeanssetswitchisusedforaccelerate,andresume

switchisusedfordecelerate.

Value1/Enabledmeanssetswitchisusedfordecelerate,andresume

switchisusedforaccelerate.

cruisecontrolmessagestotheengine.

Value0/Disabledmeanscruisecontrolswitchesarenotinstalled.

Value1/Enabledmeanscruisecontrolswitchesareinstalled.

Explanation

7-2

PM819023/KM815057(08/14/2012)

7

CECUParameter

PartNumber

Q30-1024-007ClockAlarmAvailable01Parameterisusedtodetermineifthealarmclockwillbedisplayedonthe

Q30-1024-008ClockAvailable01Parameterisusedtodetermineiftheclockwillbedisplayedonthe

Q30-1024-009DiagnosticsAvailable01Parameterisusedtodetermineifthediagnosticswillbedisplayedonthe

Q30-1024-010IgnitionTimerAvailable01Parameterisusedtodetermineiftheignitiontimerwillbedisplayedonthe

Q30-1024-011LanguagesAvailable01Parameterisusedtodetermineifotherlanguagesareavailableonthe

Q30-1024-012RPMDetailAvailable01ParameterisusedtodetermineiftheRPMinformationwillbedisplayed

Q30-1024-014TripInformationAvailable01Parameterisusedtodetermineifthetripinformationwillbedisplayed

Q30-1024-015TruckInformationAvailable01Parameterisusedtodetermineifthetruckinformationwillbedisplayed

Q30-1024-016HighlineMenusWraparound01Parameterisusedtocontrolthescrollingininformationdisplay .

Q30-1024-017DomeLampControlledBy

Door

Parameter

Description

Min.

Value

Max.

Value

informationdisplay.

Value0/DisabledmeansAlarmClockisnotavailableininformationdisplay .

Value1/EnabledmeansAlarmClockisavailableininformationdisplay

informationdisplay.

Value0/DisabledmeansClockisnotavailableininformationdisplay.

Value1/EnabledmeansClockavailableininformationdisplay

informationdisplay.

Value0/DisabledmeansDiagnosticisnotavailableininformationdisplay.

Value1/EnabledmeansDiagnosticisavailableininformationdisplay

informationdisplay.

Value0/DisabledmeansIgnitionTimerisnotavailableininformation

display.

Value1/EnabledmeansIgnitionTimerisavailableininformationdisplay

informationdisplay.

Value0/DisabledmeansLanguageselectionisnotavailableininformation

display.

Value1/EnabledmeansLanguageselectionisavailableininformation

display

ontheinformationdisplay .

Value0/DisabledmeansRPMinformationisnotavailableininformation

display.

Value1/EnabledmeansRPMinformationisavailableininformationdisplay

ontheinformationdisplay .

Value0/DisabledmeansTripInformationisnotavailableininformation

display.

Value1/EnabledmeansTripInformationisavailableininformationdisplay

ontheinformationdisplay .

Value0/DisabledmeansTruckInformationisnotavailableininformation

display.

Value1/EnabledmeansTruckInformationisavailableininformationdisplay

Value0/Disabledmeansthatthemenuwillstopwhenitreachesthetopor

thebottomofthelistwhenscrolling.

Value1/Enabledmeansthatthemenuwillwraparoundwhenitreaches

thetoporthebottomofthelistwhenscrolling.

01Parameterisusedtodetermineifthedomelampsarecontrolledbythe

(driver/passenger)door.

Value0/Disabledmeansthedoordoesnotcontrolthedomelamps.

Value1/Enabledmeansthedoordoescontrolthedomelamps.

Explanation

PM819023/KM815057(08/14/2012)

7-3

7

CECUParameter

PartNumber

Q30-1024-018DomeLampDelayPresent01Parameterisusedtodetermineifthedomelampdelaysturningoffafter

Q30-1024-019DomeLampDimming

Present

Q30-1024-020AirFilterRestrictionGauge

Installed

Q30-1024-022AmmeterGaugeInstalled01Parametercontrolsthefunctionality(outputonCVSGbusandDTC's)of

Q30-1024-023AuxiliaryTransmission

TemperatureGaugeInstalled

Q30-1024-024AxleT emperatureFront

GaugeInstalled

Q30-1024-025AxleT emperatureRear

GaugeInstalled

Q30-1024-026AxleT emperatureCenter

GaugeInstalled

Q30-1024-027BrakeAppliedPressure

GaugeInstalled

Q30-1024-028BrakesaverOilT emperature

GaugeInstalled

Q30-1024-029EngineCoolantT emperature

GaugeInstalled

Parameter

Description

Min.

Value

Max.

Value

thedoorisclosed.

Value0/Disabledmeansthereisnodelaybeforethedomelampturnsoff.

Value1/Enabledmeansthereisadelaybeforethedomelampturnsoff.

01Parameterisusedtodetermineifthedomelampdimsoutslowlyafter

thedoorisclosed.

Value0/Disabledmeansdomelampturnsoffquicklyafterthedooris

closedanddelayifenabled.

Value1/Enabledmeansdomelampdimsoutslowlyafterthedoorisclosed

anddelayifenabled.

01Parametercontrolsthefunctionality(outputonCVSGbusandDTC's)of

theairlterrestrictiongauge.

Value0/DisabledmeansAirFilterRestrictionGaugeisnotinstalled.

Value1/EnabledmeansAirFilterRestrictionGaugeisinstalled.

theammetergauge.

Value0/DisabledmeansAmmeterGaugeisnotinstalled.

Value1/EnabledmeansAmmeterGaugeisinstalled.

01Parametercontrolsthefunctionality(outputonCVSGbusandDTC's)of

theauxiliarytransmissiontemperaturegauge.

Value0/DisabledmeansAuxiliaryTransmissionT emperatureisnot

installed.

Value1/EnabledmeansAuxiliaryTransmissionTemperatureisinstalled.

01Parametercontrolsthefunctionality(outputonCVSGbusandDTC's)of

thefrontaxletemperaturegaugeifinstalled.

Value0/DisabledmeansAxleT emperatureFrontGaugeisnotinstalled.

Value1/EnabledmeansAxleTemperatureFrontGaugeisinstalled.

01Parametercontrolsthefunctionality(outputonCVSGbusandDTC's)of

therearaxletemperaturegauge.

Value0/DisabledmeansAxleT emperatureRearGaugeisnotinstalled.

Value1/EnabledmeansAxleTemperatureRearGaugeisinstalled.

01Parametercontrolsthefunctionality(outputonCVSGbusandDTC's)of

thecenteraxletemperaturegauge.

Value0/DisabledmeansAxleT emperatureCenterGaugeisnotinstalled.

Value1/EnabledmeansAxleTemperatureCenterGaugeisinstalled.

01Parametercontrolsthefunctionality(outputonCVSGbusandDTC's)of

thebrakeapplicationpressuregauge.

Value0/DisabledmeansBrakeAppliedPressureGaugeisnotinstalled.

Value1/EnabledmeansBrakeAppliedPressureGaugeisinstalled.

01Parametercontrolsthefunctionality(outputonCVSGbusandDTC's)of

thebrakesaveroiltemperaturegauge.

Valve0/DisabledmeansBrakesaverOilTemperatureGaugeisnotinstalled.

Valve1/EnablemeansBrakesaverOilT emperatureGaugeisinstalled.

01Parametercontrolsthefunctionality(outputonCVSGbusandDTC's)of

theenginecoolanttemperaturegauge.

Value0/DisabledmeansEngineCoolantT emperatureGaugeisnot

installed.

Value1/EnabledmeansEngineCoolantT emperatureGaugeisinstalled.

Explanation

7-4

PM819023/KM815057(08/14/2012)

7

CECUParameter

PartNumber

Q30-1024-030EngineManifoldPressure

(TurboBoost)Gauge

Installed

Q30-1024-031EngineOilPressureGauge

Installed

Q30-1024-032EngineOilT emperature

GaugeInstalled

Q30-1024-033ExhaustT emperatureGauge

(Pyrometer)Installed

Q30-1024-034FuelDeliveryPressure

GaugeInstalled

Q30-1024-035FuelFilterRestrictionGauge

Installed

Q30-1024-036GeneralOilT emperature

GaugeInstalled

Q30-1024-037PrimaryAirPressureGauge

Installed

Q30-1024-038PrimaryFuelLevelGauge

Installed

Q30-1024-039PTOOilTemperatureGauge

Installed

Q30-1024-040SecondaryAirPressure

GaugeInstalled

Q30-1024-041SecondaryFuelLevelGauge

Installed

Q30-1024-042TransferCaseOil

TemperatureGaugeInstalled

Parameter

Description

Min.

Value

Max.

Value

01Parametercontrolsthefunctionality(outputonCVSGbusandDTC's)of

themanifoldpressuregauge.

Value0/DisabledmeansManifoldPressureGaugeisnotinstalled.

Value1/EnabledmeansManifoldPressureGaugeisinstalled.

01Parametercontrolsthefunctionality(outputonCVSGbusandDTC's)of

theengineoilpressuregauge.

Value0/DisabledmeansEngineOilPressureGaugeisnotinstalled.

Value1/EnabledmeansEngineOilPressureGaugeisinstalled.

01Parametercontrolsthefunctionality(outputonCVSGbusandDTC's)of

theengineoiltemperaturegauge.

Value0/DisabledmeansEngineOilT emperatureGaugeisnotinstalled.

Value1/EnabledmeansEngineOilT emperatureGaugeisinstalled.

01Parametercontrolsthefunctionality(outputonCVSGbusandDTC's)of

theexhausttemperaturegauge.

Valve0/DisabledmeansExhaustTemperatureGaugeisnotinstalled.

Valve1/EnablemeansExhaustTemperatureGaugeisinstalled.

01Valve0/DisabledmeansFuelDeliveryPressureGaugeisnotinstalled.

Valve1/EnablemeansFuelDeliveryPressureGaugeisinstalled.

01Parametercontrolsthefunctionality(outputonCVSGbusandDTC's)of

thefuelrestrictiongauge.

Value0/DisabledmeansFuelFilterRestrictionGaugeisnotinstalled.

Value1/EnabledmeansFuelFilterRestrictionGaugeisinstalled.

01Parametercontrolsthefunctionality(outputonCVSGbusandDTC's)of

thegeneraloiltemperaturegauge.

Value0/DisabledmeansGeneralOilT emperatureGaugeisnotinstalled.

Value1/EnabledmeansGeneralOilT emperatureGaugeisinstalled.

01Parametercontrolsthefunctionality(outputonCVSGbusandDTC's)of

theprimaryairpressuregauge.

Value0/DisabledmeansPrimaryAirPressureGaugeisnotinstalled.

Value1/EnabledmeansPrimaryAirPressureGaugeisinstalled.

01Parametercontrolsthefunctionality(outputonCVSGbusandDTC's)of

theprimaryfuellevelgauge.

Value0/DisabledmeansPrimaryFuelLevelGaugeisnotinstalled.

Value1/EnabledmeansPrimaryFuelLevelGaugeisinstalled.

01Valve0/Disabledmeansgaugeisnotinstalled.

Valve1/Enablemeansgaugeisinstalled.

01Parametercontrolsthefunctionality(outputonCVSGbusandDTC's)of

thesecondaryairpressuregauge.

Value0/DisabledmeansSecondaryAirPressureGaugeisnotinstalled.

Value1/EnabledmeansSecondaryAirPressureGaugeisinstalled.

01Parametercontrolsthefunctionality(outputonCVSGbusandDTC's)of

thesecondaryfuellevelgauge.

Value0/DisabledmeansSecondaryFuelLevelGaugeisnotinstalled.

Value1/EnabledmeansSecondaryFuelLevelGaugeisinstalled.

01Parametercontrolsthefunctionality(outputonCVSGbusandDTC's)of

thetransfercaseoiltemperaturegauge.

Value0/DisabledmeansTransferCaseOilTemperatureGaugeisnot

installed.

Value1/EnabledmeansTransferCaseOilT emperatureGaugeisinstalled.

Explanation

PM819023/KM815057(08/14/2012)

7-5

7

CECUParameter

PartNumber

Q30-1024-043TransmissionT emperature

GaugeInstalled

Q30-1024-044VoltmeterGaugeInstalled01Parametercontrolsthefunctionality(outputonCVSGbusandDTC's)of

Q30-1024-045EngineRetarderPresent01Parameterisusedtodetermineiftheenginebrakeswitchisinstalled.

Q30-1024-046EngineMake03Parameterisusedtodeterminewhattypeofengineisinstalled.

Q30-1024-047EngineFanOverridePresent01Parameterisusedtodetermineifthefanoverrideswitchisinstalled.

Q30-1024-048GearDisplayPresent01Parameterisusedtodeterminethepresenceofgeardisplayonthe

Q30-1024-049CECUProgramming

Required

Q30-1024-050HeadlampWarningPresent01Parametercontrols"headlamp-left-on"-warning.

Q30-1024-051ChangeDistanceUnits01Parametercontrolswhetherornottheoperatorcanchangetheunitsin

Q30-1024-052ClusterBacklightDayValue0255Parameterisusedtosettheintensityofthebacklightingforthecluster

Q30-1024-053CVSGBacklightDayValue0127Parameterisusedtosettheintensityofthebacklightingforthegauges

Parameter

Description

Min.

Value

Max.

Value

01Parametercontrolsthefunctionality(outputonCVSGbusandDTC's)of

thetransmissiontemperaturegauge.

Value0/DisabledmeansTransmissionT emperatureGaugeisnotinstalled.

Value1/EnabledmeansTransmissionT emperatureGaugeisinstalled.

thevoltmetergauge.

Value0/DisabledmeansVoltmeterGaugeisnotinstalled.

Value1/EnabledmeansVoltmeterGaugeisinstalled.

Value0/Disabledmeansenginebrakeswitchesarenotinstalled.

Value1/Enabledmeansenginebrakeswitchesareinstalled.

Value0meansthetruckisequippedwithCA Tengine.

Value1meansthetruckisequippedwithCUMMINSengine.

Value2meansthetruckisequippedwithPACCARengine.

Value3meansthetruckisequippedwithOTHERengine.

Value0/Disabledmeansenginefanoverrideswitchisnotinstalled.

Value1/Enabledmeansenginefanoverrideswitchisinstalled.

informationdisplay.

Value0/DisabledmeansGearDisplayfunctionalityisnotavailablein

informationdisplay.

Value1/EnabledmeansGearDisplayfunctionalityisavailableininformation

display.

01Parameterisusedtodetermineifthebacklightingisashedtoindicatethat

theCECUhasnotbeenparameterized.

Value0/DisabledmeanstheLCDbacklightsarenotashed.

Value1/EnabledmeanstheLCDbacklightsareashed.

Value0/Disabledmeansanalarmwillnotsoundwhenthelightsareon,the

keyisoffandthedriverdoorisopen.

Value1/Enabledmeansanalarmwillsoundwhenthelightsareon,key

isoffandthedriverdoorisopen.

thecluster.

Value0/Disabledmeanstheoperatorcannotchangetheunitsinthecluster .

Value1/Enabledmeanstheoperatorcanchangetheunitsinthecluster.

whenthelightsarenoton.

Value0meansminimumillumination.

Value255meansmaximumillumination.

whenthelightsarenoton.

Value0meansminimumillumination.

Value127meansmaximumillumination.

Explanation

7-6

PM819023/KM815057(08/14/2012)

7

CECUParameter

PartNumber

Q30-1024-054DashBacklightDayValue0255Parameterisusedtosettheintensityofthebacklightingfortheentiredash

Q30-1024-055DashDimWithDomeLight01Parameterisusedtodetermineifthedashbacklightingshoulddimifthe

Q30-1024-056TFTBacklightDayValue0255Parameterisusedtosettheintensityofthebacklightingfortheinformation

Q30-1024-058TransferCaseT emperature

SensorType

Q30-1024-059ParkBrakeSymbolIn

IndicationBar

Q30-1024-060PTOControlPresent01ParameterisusedtodeterminethepresenceofPTOcontrols.(For

Q30-1024-062AfterTreatmentRegeneration

Switch

Q30-1024-063RemotePTOPresent01ParameterisusedtodetermineiftheremotePTOswitchesareinstalled

Q30-1024-064RPMSweetSpotHighLimit03000ParameterisusedtosetthehighlimitforRPMsweetspotbargraph

Q30-1024-065RPMSweetSpotLowLimit03000ParameterisusedtosetthelowlimitforRPMsweetspotbargraph

Q30-1024-066TransmissionMake04Parameterisusedtodeterminethetype/makeoftransmission.

Parameter

Description

Min.

Value

Max.

Value

whenthelightsarenoton.

Value0meansminimumillumination.

Value255meansmaximumillumination.

domelightison.

Value0/Disabledmeansthefunctionalityisdisabled.

Value1/Enabledmeansthefunctionalityisenabled.

displaywhenthelightsarenoton.

Value0meansminimumillumination.

Value255meansmaximumillumination.

01Parameterisusedtodeterminewhichtypeoftransfercasetemperature

sensorisinstalledforthetransfercasetemperaturegauge.Thisdetermines

theinputrange.

Value0meansT ransferCaseT emperatureSensorType=Delphi.

Value1meansTransferCaseT emperatureSensorT ype=Siemens(or

Continental).

01Parameterisusedtodetermineiftheparkbrakesymbolisavailableonthe

indicatorbarlocatedontheRHsideoftheinformationdisplay.

Value0/Disabledmeansparkbrakesymbolwillnotbedisplayed.

Value1/Enabledmeansparkbrakesymbolwillbedisplayed.

CUMMINSengine,defaultvalueis1-CruiseControlPTOidlebump).

Value0/DisabledmeansPTOControlfunctionalityisdisabled.

Value1/EnabledmeansPTOControlfunctionalityisenabled.

01ParameterisusedtodetermineiftheDieselParticulateFilter(DPF)

aftertreatmentregenerationforceorinhibitswitchesareinstalled.

Value0/DisabledmeansAfterTreatmentRegenerationSwitchisnot

installed.

Value1/EnabledmeansAfterTreatmentRegenerationSwitchisinstalled.

(PACCARenginesonly).

Value0/DisabledmeansRemotePTOswitchesarenotinstalled.

Value1/EnabledmeansRemotePTOswitchesarewiredtoCECUand

functionalityisenabled.

displayedontheinformationdisplay.

displayedontheinformationdisplay.

Value0-Manualtransmission.

Value1-Autoshifttransmission.

Value2-Ultrashifttransmission.

Value3-Freedomlinetransmission.

Value4-Allisontransmission.

Explanation

PM819023/KM815057(08/14/2012)

7-7

7

CECUParameter

PartNumber

Q30-1024-067BrakeAppliedPressure

SensorInstalled

Q30-1024-068DomeLightControlledBy

LowVoltageDisconnect

Q30-1024-069LVDSytemDropoutV oltage0600Parameterisusedtodeterminethevoltagecutouttoturnoffthedome

Q30-1024-070AlarmBellSymbol02Parameterisusedtodeterminethestatusofthealarmbellsymbolinthe

Q30-1024-071IgnitionTimerMaximumTime590Parameterisusedtodeterminethemaximumtimetheidletimercanbeset

Q30-1024-072VoltageT rimMultiplier0999999Parameterisusedtotrimorcalibratethevoltmeter.Thisvalueisthe

Q30-1024-073VoltageTrimOffset010000Parameterisusedtotrimorcalibratethevoltmeter.Thisvalueisthe

Q30-1024-074LowVoltageDisconnect

Installed

Q30-1024-075EngineFanWithParkBrake

Installed

Q30-1024-076PrimaryAirPressureon

V-CAN

Parameter

Description

Min.

Value

Max.

Value

01Parameterisusedtodetermineifthebrakeapplicationpressuresensoris

installed.Thisparameterwilleffectthefunctionalityofthebrakeapplied

gaugeandcruisecontrol.

Value0/Disabledmeansbrakeapplicationpressuresensorisnotinstalled.

BrakeappliedgaugewillnotfunctionandCECUwillnotsendbrakeinfo

ondatabus.

Value1/Enabledmeansbrakeapplicationpressuresensorisinstalled.

Brakeappliedgaugewillbeenabled(If"BrakeAppliedPressureGauge

Installed"parameterisalsoenabled)andCECUwillsendbrakeinfoon

databus.

01ParameterisusedtodetermineifthedomelampsarecontrolledbytheL VD.

Value0/DisabledmeansthedomelampsarenotcontrolledbytheLVD.

Value1/EnabledmeansthedomelampsarecontrolledbytheLVD.

lamps.

Defaultsettingis121:or12.1volts.

informationdisplay.

Value0meansthealarmbellsymbolisoff.

Value1meansthealarmbellsymbolisonsolid.

Value2meansthealarmbellsymbolisanimated.

to.Thevaluecanbesetinoneminuteincrements.

Value5meansveminutes.

Value90meansninetyminutes.

"multiplier"portionofthetrimandhasarangebetween0and999999.See

VoltmeterTrimProcedureonpage7-21followingthischart,forstepsto

determinethecorrectvalue.

"offset"portionofthetrimandhasarangebetween0and10000.See

VoltmeterTrimProcedureonpage7-21followingthischart,forstepsto

determinethecorrectvalue.

01Parameterisusedtodetermineifalowvoltagedisconnectsystemis

installed.Value0/DisabledmeansaLVDsystemisnotinstalled.V alue

1/EnabledmeansaLVDsystemisinstalled.

01Parameterisusedtodetermineifanenginefanoverrideisavailabletothe

operator.Thisoverridewillallowtheoperatortoturntheenginefanon

whentheparkbrakesaresetandtheengineECUpermitsthefantoturnon.

Value0/Disablemeansthatthisfunctionisnotenabledandtheoperator

cannotcontrolwhentheenginefanturnson.

Value1/Enabledmeansthattheoperatormayturntheenginefanonwhen

theparkbrakesareonandtheengineECUpermitsthefantobeon.

01Parameterisusedtodetermineiftheprimaryairpressureisbroadcaston

theV-CAN.

Value0/Disabledmeanstheprimaryairpressureisnotbroadcastonthe

V-CAN.

Value1/EnabledmeanstheprimaryairpressureisbroadcastontheV-CAN.

Explanation

7-8

PM819023/KM815057(08/14/2012)

7

CECUParameter

PartNumber

Q30-1024-077SecondaryAirPressureon

V-CAN

Q30-1024-078VoltageonV-CAN01ParameterisusedtodetermineifvoltageisbroadcastontheV-CAN.

Q30-1024-079PrimaryFuelLevelonV-CAN01Parameterisusedtodetermineiftheprimaryfuellevelisbroadcaston

Q30-1024-080SecondaryFuelLevelon

V-CAN

Q30-1024-082SmartWheelInstalled01Parameterisusedtodetermineifasmartwheelisinstalled.Thisparameter

Q30-1024-083GovernedSpeedLimit

Available

Q30-1024-084RemoteAcceleratorSensor

Installed

Q30-1024-085AxleT emperatureSteer

GaugeInstalled

Parameter

Description

Min.

Value

Max.

Value

01Parameterisusedtodetermineifthesecondaryairpressureisbroadcast

ontheV-CAN.

Value0/Disabledmeansthesecondaryairpressureisnotbroadcaston

theV-CAN.

Value1/Enabledmeansthesecondaryairpressureisbroadcastonthe

V-CAN.

Value0/DisabledmeansvoltageisnotbroadcastontheV-CAN.

Value1/EnablemeansvoltageisbroadcastontheV-CAN.

theV-CAN.

Value0/Disabledmeanstheprimaryfuellevelisnotbroadcastonthe

V-CAN.

Value1/EnablemeanstheprimaryfuellevelisbroadcastontheV-CAN.

01Parameterisusedtodetermineifthesecondaryfuellevelisbroadcaston

theV-CAN.

Value0/Disabled;notbroadcastontheV -CAN.

Value1/Enable;broadcastontheV-CAN.

enablestheclusterretarderlamp.Thislampisonlyenabledwhenthetruck

isequippedwithamultiplexsteeringwheel.

Value0/Disabledmeansasmartwheelisnotinstalled.

Value1/Enablemeansasmartwheelisinstalled.

01ParametercontrolsiftheGovernedspeedlimittransmittedbytheEngine

onV-CANisdisplayedonthe"EngineInfo"MFDscreen.

Value0/DisabledmeanstheGovernedSpeedLimitisnotDisplayed

Value1/EnablemeanstheGovernedSpeedLimitisdisplayed,iftheEngine

istransmittingit.

01ParametercontrolsfaultloggingforRemoteAcceleratorinput(C27of

CECU).AlsocontrolstransmissionofRemoteAcceleratorinformationon

V-CAN.

Value0/DisabledmeansthatnoDTCswillbeloggedifthatinputisina

failurestate(open,short)and"NotAvailable"istransmittedonV-CAN

Value1/EnablemeansthatDTCswillbeloggedifthatinputisinafailure

state(open,short).TheremoteacceleratorvaluesonV-CANarepopulated

withvaliddata(or"Error"ifafaultisoccurringontheinput).

01Parametercontrolsfaultloggingofanaloginputandgaugeoutputsto

CVSG.(ForPeterbiltOnly)

Value0/DisabledmeansthatnoDTCswillbeloggedifthatinputisina

failurestate(open,short)andthegaugeneedlewillnotmoveifconnected

totheCVSGbus.

Value1/EnablemeansthatDTCswillbeloggedifthatinputisinfailure

state(open,short)andthegaugeneedlewillmovewhenconnectedto

theCVSGbus.

Explanation

PM819023/KM815057(08/14/2012)

7-9

7

CECUParameter

PartNumber

Q30-1024-086FleetIDAvailable01ParametercontrolswhethertheFleetIDisvisibleintheTruckInformation

Q30-1024-088DieselExhaustFluidGauge

Installed

Q30-1024-089DRLEnabled01ParametercontrolstheDRLfunctionalityoftheexteriorlighting.

Q30-1024-090DRLInhibitSwitchType02ParametercontrolsthebehavioroftheDRLInhibitSwitch.

Q30-1024-092FogLampsInstalled01ParametercontrolsthefoglampoutputsoftheChassisNode.

Q30-1024-093LightsWithWipersEnable01ParametercontrolswhetherthemenuitemisavailableforLightswith

Parameter

Description

Min.

Value

Max.

Value

screenintheMFD.

Value0/DisabledmeanstheFleetIDisnotvisibleintheTruckInformation

screen.

Value1/EnablemeanstheFleetIDisenabledintheTruckInformation

screen.ThisrequirestheFleetIDtobeprogrammedbyESA,otherwise

itwillnotbevisible.

01ParametercontrolsfaultloggingandgaugeneedleiftheDEFgaugeis

installed.

Value0/Disabledmeansthatnofaultswillbeloggedandthegaugeneedle

willnotmoveifthegaugeisinstalled.

Value1/EnablemeansthatDTCswillbeloggediftheDEFinformation

fromtheaftertreatmentsystemisnotavailableandthegaugeneedlewill

respondtoDEFlevelchanges.

Value0/Disablemeanstheheadlampswitchandhighbeamswitchcontrol

theheadlamps.Whentheyareturnedoff,theheadlampswillturnoff.

Value1/Enabledmeansthelowbeams(at50%power)orintegratedturn

signalwillbeonatalltimeswhentheheadlamporhighbeamswitchis

noton.

Value0/NonemeansthattheDRLInhibitInputisnotobservedbythe

CECU.

Value1=NormalmeansthattheDRLwillbedisabledwhentheswitchis

active.

Value2=Canadian(10secmax)meansthattheDRLwillbedisabledwhen

theswitchisactive,foramaximumof10seconds.After10seconds,the

DRLwillturnbackonandaDTCwillbeactiveaslongastheDRLswitch

isstillactive.

Value0/Disabledmeansthefoglampoutputisnotdriven.Iffoglamps

areinstalled,theywillneverbelit.

Value1/Enabledmeansthefoglampoutputwilloutputfaults(open,short).

Wipers.WhenenabledbytheoperatorthroughtheMFD,thelowbeam

headlampswillturnonwheneverthewipersareactive(INT ,LOW ,orHI).

Value0/Disabledmeanstheheadlampswillnotturnonwhenthewipers

areactive.

Value1/Enabledmeanstheheadlampswillturnonwhenthewipersare

active.

Explanation

7-10

PM819023/KM815057(08/14/2012)

7

CECUParameter

PartNumber

Q30-1024-094HeadLampType040ParametercontrolsthePWMactivityoftheheadlamps.

Q30-1024-095StarterRPMProtection

Enable

Q30-1024-096StarterInGearProtection

Enable

Q30-1024-097StarterOvercrankProtection

Enable

Q30-1024-099PACCARLightingModel05ParametercontrolstheLightingModel

Q30-1024-101TrailerDetectEnable01ParametercontrolstheTrailerDetectfunctionality.

Q30-1024-102TurnLampsFrontSide

Installed

Parameter

Description

Min.

Value

Max.

Value

Value0/SinglemeansSingleSealedBeam

Value1/DualmeansDualSealedBeam

Value2-9/reservedmeansreserved

Value10/PBmeansReplaceableBulb

Value11-19/reservedmeansreserved

Value20/IntegralmeansIntegralBeamPod

Value21-39/reservedmeansreserved

Value40/IntegralmeansIntegralBeamPodHID

01ParametercontrolswhethertheStarterwillbedisabledwhentheengineis

running.

Value0/DisabledmeanstheengineRPMwillbeignoredwhenallowing

thestartertoengage.

Value1/EnabledmeanstheengineRPMmustbebelow500rpmforthe

startertoengage.

01Parametercontrolswhetherthestarterwillbedisabledbecauseofthe

transmissionstate.

Value0/Disabledmeansthestarterwillbeenabledregardlessofthe

transmissionstate.

Value1/Enabledmeansthestarterwillbedisabledifthetransmissionis

notinneutral(optionalformanualtransmissions).

01Parametercontrolswhetherthestarterwillbedisabledduetooveruse.

Value0/Disabledmeansthestarterwillnotbedisabledduetooveruse

Value1/Enabledmeansthestarterwillbedisabledifthestarterisoverused

(crankingfor90swithoutsufcientcooldown).

Value0=NoExteriorLighting

Value1=KWBCAB

Value2=PBBCAB

Value3=KWNGP

Value4=PB

Value5=KWECERussianHomologation

Value0/Disabledmeansthereisnoadditiondiagnosticsofthetrailer

connection.

Value1/Enabledmeansthereisadditionaldiagnosticsofthetrailer .The

operatorwillbewarnedifthetrailerhasbecomedisconnectedoris

intermittentlydisconnectingwhileinmotion

01Parametercontrolstheoutputsforthefrontsideturnlamps.

Value0/Disabledmeanswiththehardwareinstalled,thelampswillwork,

butthediagnosticswillnot(exceptshortcircuits)

Value1/Enabledmeanstheoutputsanddiagnosticsareenabled(mostly

forthefenderlampsforT660s).Ifitisenabledwithnohardwareinstalled,

youwillgetconstantopencircuiterrors.

Explanation

PM819023/KM815057(08/14/2012)

7-11

7

CECUParameter

PartNumber

Q30-1024-103TurnLampsTrailerInstalled01Parametercontrolstheoutputsforthetraileroutputs

Q30-1024-104OATSource01ParametercontrolsthesignalusedtopopulatetheLCDintheT achometer,

Q30-1024-105BackupAlarmMuteEnabled01Parametercontrolsthebackupalarmmutefunctionality .

Q30-1024-106PreTripLightingT estEnabled01ParametercontrolstheavailabilityofthePreTripLightingT est.

Q30-1024-107PreTripT estSequence

Interval

Q30-1024-108EnableGateway01Parametercontrolsthegatewayfunctionality .Thismustbeenabledforthe

Q30-1024-109EnableRouter01Parametercontrolstherouterfunctionality.Thismustbeenabledforthe

Q30-1024-110GatewayEngineCCVS

Message

Parameter

Description

Min.

Value

10s30sParametercontrolstheintervalofthepretriplightingtest.Thisishowlong

Max.

Value

0/Disabledmeanswiththehardwareinstalled,thelampswillwork,butthe

diagnosticswillnot(exceptshortcircuits)

Value1/Enabledmeansoutputsanddiagnosticsareenabled.Ifitis

enabledwithnohardwareinstalled,youwillgetconstantopencircuiterrors.

aswellasallotherCECUfeaturesthatusetemperatureaspartofthe

algorithm.

Value0/CECUmeansthattheanaloginputoftheCECUisused(non-OBD

engines).

Value1/EnginemeansthattheJ1939V-CANinputfromtheEnginewill

beused.

Value0/Disabledmeansthebackupalarmwillneverbemuted.

Value1/Enabledmeanstheexternalbackupalarmspeakerwillbemuted

whenthedashswitchisactivatedbytheoperator.

Value0/Disabledmeansthemenuiteminthesettingsmenuisnotavailable

andthePreTripsequencewillneverbeexecuted.

Value1/Enabledmeansthemenuitemisavailableinthesettingsmenu.

Whentheoperatorenablesit,thepretriplightingsequencewillbeinitiated.

itstaysinanyonemodebeforetransitiontothenexttestmode.

followingGatewayparameterstotakeeffect.

Value0/DisabledmeansnoGatewayofmessageswilloccur.

Value1/Enabledmeansthesettingsofthefollowinggatewayparameters

willbeobserved.

followingRouterparameterstotakeeffect.

Value0/DisabledmeansnoRoutingofmessageswilloccur.

Value1/Enabledmeansthesettingsofthefollowingrouterparameters

willbeobserved.

064Parametercontrolsthesettingsforthisindividualmessage.Addthe

numberstogetherformultipledestinations.

Value0;OFF

Value1;B-CAN

Value2;C-CAN

Value4;D-CAN

Value8;F-CAN

Value16;I-CAN

Value32;V -CAN

Explanation

7-12

PM819023/KM815057(08/14/2012)

7

CECUParameter

PartNumber

Q30-1024-112GatewayEngineEEC1

Message

Q30-1024-113GatewayEngineEEC2

Message

Q30-1024-114GatewayEngineET1

Message

Q30-1024-115GatewayEngineIC1

Message

Q30-1024-116GatewayEngineLFE

Message

Parameter

Description

Min.

Value

Max.

Value

064Parametercontrolsthesettingsforthisindividualmessage.Addthe

numberstogetherformultipledestinations.

Value0;OFF

Value1;B-CAN

Value2;C-CAN

Value4;D-CAN

Value8;F-CAN

Value16;I-CAN

Value32;V -CAN

064Parametercontrolsthesettingsforthisindividualmessage.Addthe

numberstogetherformultipledestinations.

Value0;OFF

Value1;B-CAN

Value2;C-CAN

Value4;D-CAN

Value8;F-CAN

Value16;I-CAN

Value32;V -CAN

064Parametercontrolsthesettingsforthisindividualmessage.Addthe

numberstogetherformultipledestinations.

Value0;OFF

Value1;B-CAN

Value2;C-CAN

Value4;D-CAN

Value8;F-CAN

Value16;I-CAN

Value32;V -CAN

064Parametercontrolsthesettingsforthisindividualmessage.Addthe

numberstogetherformultipledestinations.

Value0;OFF

Value1;B-CAN

Value2;C-CAN

Value4;D-CAN

Value8;F-CAN

Value16;I-CAN

Value32;V -CAN

064Parametercontrolsthesettingsforthisindividualmessage.Addthe

numberstogetherformultipledestinations.

Value0;OFF

Value1;B-CAN

Value2;C-CAN

Value4;D-CAN

Value8;F-CAN

Value16;I-CAN

Value32;V -CAN

Explanation

PM819023/KM815057(08/14/2012)

7-13

7

CECUParameter

PartNumber

Q30-1024-118GatewayTransmissionETC1

Message

Q30-1024-119GatewayTransmissionETC2

Message

Q30-1024-120RouteEngineAMBMessage064Parametercontrolsthesettingsforthisindividualmessage.Addthe

Q30-1024-121RouteEngineEFLP1

Message

Q30-1024-122RouteEngineFDMessage064Parametercontrolsthesettingsforthisindividualmessage.Addthe

Parameter

Description

Min.

Value

Max.

Value

064Parametercontrolsthesettingsforthisindividualmessage.Addthe

numberstogetherformultipledestinations.

Value0;OFF

Value1;B-CAN

Value2;C-CAN

Value4;D-CAN

Value8;F-CAN

Value16;I-CAN

Value32;V -CAN

064Parametercontrolsthesettingsforthisindividualmessage.Addthe

numberstogetherformultipledestinations.

Value0;OFF

Value1;B-CAN

Value2;C-CAN

Value4;D-CAN

Value8;F-CAN

Value16;I-CAN

Value32;V -CAN

numberstogetherformultipledestinations.

Value0;OFF

Value1;B-CAN

Value2;C-CAN

Value4;D-CAN

Value8;F-CAN

Value16;I-CAN

Value32;V -CAN

064Parametercontrolsthesettingsforthisindividualmessage.Addthe

numberstogetherformultipledestinations.

Value0;OFF

Value1;B-CAN

Value2;C-CAN

Value4;D-CAN

Value8;F-CAN

Value16;I-CAN

Value32;V -CAN

numberstogetherformultipledestinations.

Value0;OFF

Value1;B-CAN

Value2;C-CAN

Value4;D-CAN

Value8;F-CAN

Value16;I-CAN

Value32;V -CAN

Explanation

7-14

PM819023/KM815057(08/14/2012)

7

CECUParameter

PartNumber

Q30-1024-123RouteEngineHOURS

Message

Q30-1024-124RouteEngineLFCMessage064Parametercontrolsthesettingsforthisindividualmessage.Addthe

Q30-1024-125RouteEngineVDMessage064Parametercontrolsthesettingsforthisindividualmessage.Addthe

Q30-1024-126RouteTransmissionTRF1

Message

Q30-1024-127TransmitCECULCMessage064Parametercontrolsthesettingsforthisindividualmessage.Addthe

Parameter

Description

Min.

Value

Max.

Value

064Parametercontrolsthesettingsforthisindividualmessage.Addthe

numberstogetherformultipledestinations.

Value0;OFF

Value1;B-CAN

Value2;C-CAN

Value4;D-CAN

Value8;F-CAN

Value16;I-CAN

Value32;V -CAN

numberstogetherformultipledestinations.

Value0;OFF

Value1;B-CAN

Value2;C-CAN

Value4;D-CAN

Value8;F-CAN

Value16;I-CAN

Value32;V -CAN

numberstogetherformultipledestinations.

Value0;OFF

Value1;B-CAN

Value2;C-CAN

Value4;D-CAN

Value8;F-CAN

Value16;I-CAN

Value32;V -CAN

064Parametercontrolsthesettingsforthisindividualmessage.Addthe

numberstogetherformultipledestinations.

Value0;OFF

Value1;B-CAN

Value2;C-CAN

Value4;D-CAN

Value8;F-CAN

Value16;I-CAN

Value32;V -CAN

numberstogetherformultipledestinations.

Value0;OFF

Value1;B-CAN

Value2;C-CAN

Value4;D-CAN

Value8;F-CAN

Value16;I-CAN

Value32;V -CAN

Explanation

PM819023/KM815057(08/14/2012)

7-15

7

CECUParameter

PartNumber

Q30-1024-128EnableLEDFrontSideTurn01Parametercontrolstheabilityofthediagnosticstodetectfaultsonthis

Q30-1024-129EnableLEDFrontTurnDRL01Parametercontrolstheabilityofthediagnosticstodetectfaultsonthis

Q30-1024-130EnableLEDRearStopTurn01Parametercontrolstheabilityofthediagnosticstodetectfaultsonthis

Q30-1024-131MultiplexABSOffRoad

Switch

Q30-1024-132EngineFanonwithACand

ParkBrake

Q30-1024-133BrakeLampsonwithEngine

Retarder

Q30-1024-134CECULVDEnable01ParameterisusedtodetermineiftheCECUiscontrollingtheLowVoltage

Q30-1024-135OperatorControlofL VD

VoltageLevel

Parameter

Description

Min.

Value

Max.

Value

circuit.Theselampsaretherearfenderlampsorothersupplementallamps.

Value0/DisabledmeanstheLEDswillbeincorrectlydiagnosedasopen

circuitsduetotheirelectricalcharacteristics.

Value1/Enabledmeanstheopencircuitdetectionisdisabled.

circuit.TheselampsaretheIntegralBeamturn/DRLlamporfenderturn

lamps.

Value0/DisabledmeanstheLEDswillbeincorrectlydiagnosedasopen

circuitsduetotheirelectricalcharacteristics.

Value1/Enabledmeanstheopencircuitdetectionisdisabled.

circuit.Theselampsarethetractorbrake/taillamps.

Value0/DisabledmeanstheLEDswillbeincorrectlydiagnosedasopen

circuitsduetotheirelectricalcharacteristics.

Value1/Enabledmeanstheopencircuitdetectionisdisabled.

01ParameterisusedtodetermineiftheABSOffRoadSwitchisconnectedto

theCECU.

Value0/DisabledmeansABSOffroadSwitchisnotinstalled.

Value1/EnabledmeansABSOffroadSwitchisinstalled.

ThisparameterisrequiredfortheABSOffRoadswitchtocommunicate

withtheABSECUviaJ1939V-CAN.

01Parameterisusedtodetermineifanenginefanoverrideisavailableto

theoperator.Thisoverridewillallowtheoperatortoturntheenginefan

onwhentheparkbrakesareset,A/CisONandtheengineECUpermits

thefantoturnon.

Value0/Disablemeansthatthisfunctionisnotenabledandtheoperator

cannotcontrolwhentheenginefanturnson.

Value1/Enabledmeansthattheoperatormayturntheenginefanonwhen

theparkbrakesareon,A/CisONandtheengineECUpermitsthefan

tobeon.

01Parameterisusedtodetermineifthetractorandtrailerbrakelampswill

turnonwhentheengineretarderisengaged.

Value0/Disabledmeansthetractorandtrailerbrakelampswillnotturnon

whentheengineretarderisengaged.

Value1/Enabledmeansthetractorandtrailerbrakelampswillturnonwhen

theengineretarderisengaged.

Disconnect(LVD).

Value0/DisabledmeanstheCECUisnotcontrollingL VDfunctionality.

Value1/EnabledmeanstheCECUiscontrollingLVDFunctionality.

01ParameterisusedtodetermineiftheoperatorcancontroltheLowV oltage

Disconnect(LVD)shutoffvoltage.

Value0/DisabledmeanstheoperatorisnotcontrollingtheLVDshutoff

voltage.

Value1/EnabledmeanstheoperatoriscontrollingtheLVDshutoffvoltage.

Explanation

7-16

PM819023/KM815057(08/14/2012)

7

CECUParameter

PartNumber

Q30-1024-137AdvancedABSInstalled01ParameterisusedtodetermineifAdvancedABSisinstalled.

Q30-1024-138WaterInFuelWarning

Enabled

Q30-1024-139VariableSpeedFanCutoff

VehicleSpeed

Q30-1024-140VariableSpeedFanLow

Value

Q30-1024-141VariableSpeedFanEnable01ParameterisusedtodetermineiftheVariableSpeedFanisinstalled.

Q30-1024-142BrakeApplicationAiron

V-CAN

Q30-1024-143MainTransmissionOilTemp

onV-CAN

Q30-1024-144TripAverageFuelEconomy

onV-CAN

Parameter

Description

Min.

Value

Max.

Value

Value0/DisabledmeansAdvancedABSisdisabled.

Value1/EnabledmeansAdvancedABSisenabled.

ThisparameterisrequiredfortruckswithBendixAdvancedCruisewith

Braking(ACB)

01ParameterisusedtodetermineiftheWaterInFuelwarningpop-up

messageisenabled.

Value0/DisabledmeanstheWaterInFuelPop-upwarningmessagewill

notdisplaywhentheappropriateconditionexists.

Value1/EnabledmeanstheWaterInFuelPop-upwarningmessagewill

displaywhentheappropriateconditionexists.

550ParameterisusedtosetthevehiclespeedcutofffortheV ariableSpeed

Fan.

Value5meansbelow5MPHtheCECUsendsthevalueofV ariableFan

LowSpeedValue(Q30-1024-140)fortheEngineFanandabove5MPHthe

CECUsendsthevalueof100%fortheEngineFanwhentheappropriate

conditionsexist.

Value50meansbelow50MPHtheCECUsendsthevalueofV ariable

FanLowSpeedValue(Q30-1024-140)fortheEngineFanandabove50

MPHtheCECUsendsthevalueof100%fortheEngineFanwhenthe

appropriateconditionsexist.

0100ParameterisusedtosettheV ariableSpeedEnginecoolingfanwhenthe

enginepermitstheinputfromtheCECU.

Value0/meansthattheCECUisrequesting0%enginefanengagement.

Value0/meansthattheCECUisrequesting1000%enginefan

engagement.

Value0/DisabledmeansV ariableSpeedFanisnotinstalled.

Value1/EnabledmeanstheVariableSpeedFanisinstalled.

ThisparameterisrequiredfortheBorgWarnerCoolLogicFans.

01Parameterisusedtodetermineifthebrakeapplicationairpressureis

broadcastontheV-CAN.

Value0/Disabled;notbroadcastontheV -CAN.

Value1/Enable;broadcastontheV-CAN.

01Parameterisusedtodetermineifthemaintransmissionoiltemperature

isbroadcastontheV -CAN.

Value0/Disabled;notbroadcastontheV -CAN.

Value1/Enable;broadcastontheV-CAN.

01Parameterisusedtodetermineifthetripaveragefueleconomyis

broadcastontheV-CAN.

Value0/Disabled;notbroadcastontheV -CAN.

Value1/Enable;broadcastontheV-CAN.

Explanation

PM819023/KM815057(08/14/2012)

7-17

7

CECUParameter

PartNumber

Q30-1024-145DestinationforEngineDPF

ControlMessage1

Q30-1024-146DestinationforEngine

AftertreatmentSCRT ank

Message1

Q30-1024-147EngineProtectionCountdown

TimerPopupAvailable

Q30-1024-148FrontAxleEngagedSpeed

WarningPopupAvailable

Q30-1024-149FrontAxleEngagedV ehicle

WarningSpeedThreshold

Q30-1024-150AdaptiveCruiseandBraking

DisplayAvailable

Q30-1024-151TurnLampsFrontSide01Parameterisusedtodetermineiftheturnlampfrontsideshouldbe

Q30-1024-152OverspeedShutdown

Installed

Parameter

Description

Min.

Value

Max.

Value

064Parametercontrolsthesettingsforthisindividualmessage.Addthe

numberstogetherformultipledestinations.

Value0;OFF

Value1;B-CAN

Value2;C-CAN

Value4;D-CAN

Value8;F-CAN

Value16;I-CAN

Value32;V -CAN

064Parametercontrolsthesettingsforthisindividualmessage.Addthe

numberstogetherformultipledestinations.

Value0;OFF

Value1;B-CAN

Value2;C-CAN

Value4;D-CAN

Value8;F-CAN

Value16;I-CAN

Value32;V -CAN

01Parameterisusedtodetermineiftheengineprotectioncountdowntimer

popupwillbedisplayedontheinformationdisplay.

Value0/Disabledmeanstheengineprotectioncountdowntimerpopupis

notavailableininformationdisplay.

Value1/Enabledmeanstheengineprotectioncountdowntimerpopupis

availableininformationdisplay

01Parameterisusedtodetermineifthefrontaxleengagedspeedwarning

popupwillbedisplayedontheinformationdisplay.

Value0/Disabledmeansthefrontaxleengagedspeedwarningpopupis

notavailableininformationdisplay.

Value1/Enabledmeansthefrontaxleengagedspeedwarningpopupis

availableininformationdisplay

8161Parameterisusedtosetthevehiclespeedthresholdatwhichthefrontaxle

engagedspeedwarningwilltrigger.

01Parameterisusedtodetermineiftheadaptivecruiseandbrakingdisplay

willbedisplayedontheinformationdisplay .

Value0/Disabledmeanstheadaptivecruiseandbrakingdisplayisnot

availableininformationdisplay .

Value1/Enabledmeanstheadaptivecruiseandbrakingdisplayisavailable

ininformationdisplay

enabled.

Value0/Disabledmeanstheturnlampfrontsideisdisabled.

Value1/Enabledmeanstheturnlampfrontsideisenabled.

01Parameterisusedtodetermineiftheoverspeedshutdownfeatureis

installed.

Value0/Disabledmeanstheoverspeedshutdownfeatureisnotinstalled.

Value1/Enabledmeanstheoverspeedshutdownfeatureisinstalled.

Explanation

7-18

PM819023/KM815057(08/14/2012)

7

CECUParameter

PartNumber

Q30-1024-153OverspeedShutdownLow

AirWarningEnabled

Q30-1024-154OverspeedShutdownLow

AirThreshold

Q30-1024-155TransmissionT elltaleTrigger

Value

Q30-1024-156PTOT otalFuelFaultEnabled01ParameterisusedtodetermineifthePTOtotalfuelfaultmessageis

Q30-1024-157MarkerLampSwitch

Conguration

Q30-1024-158DarkCabinEnabled01Parameterisusedtodetermineifthedarkcabinfeatureisavailablein

Q30-1024-159AxleOilT emperatureT elltale

Value

Q30-1024-160ElectricOverAirFunction1ParameterisusedtosetthefunctionthatisinstalledtothisEOA

Q30-1024-161ElectricOverAirFunction2ParameterisusedtosetthefunctionthatisinstalledtothisEOA

Q30-1024-162ElectricOverAirFunction3ParameterisusedtosetthefunctionthatisinstalledtothisEOA

Q30-1024-163ElectricOverAirFunction4ParameterisusedtosetthefunctionthatisinstalledtothisEOA

Q30-1024-164ElectricOverAirFunction5ParameterisusedtosetthefunctionthatisinstalledtothisEOA

Q30-1024-165ElectricOverAirFunction6ParameterisusedtosetthefunctionthatisinstalledtothisEOA

Q30-1024-166ElectricOverAirFunction7ParameterisusedtosetthefunctionthatisinstalledtothisEOA

Q30-1024-167ElectricOverAirFunction8ParameterisusedtosetthefunctionthatisinstalledtothisEOA

Q30-1024-168ElectricOverAirFunction1

SpeedCutoff

Q30-1024-169ElectricOverAirFunction2

SpeedCutoff

Q30-1024-170ElectricOverAirFunction3

SpeedCutoff

Parameter

Description

Min.

Value

Max.

Value

01Parameterisusedtodetermineiftheoverspeedshutdownlowairwarning

isenabled.

Value0/Disabledmeanstheoverspeedshutdownlowairwarningis

disabled.

Value1/Enabledmeanstheoverspeedshutdownlowairwarningisenabled.

8161Parameterisusedtosettheprimaryairpressurethresholdvalueatwhich

theoverspeedshutdownlowairwarningwilltrigger .

0300Parameterisusedtosettheexibleactivationlevelvalueatwhichthe

transmissionoiltemperaturetelltalewilltrigger.

enabled.

Value0/DisabledmeansthePTOtotalfuelfaultmessageisdisabled.

Value1/EnabledmeansthePTOtotalfuelfaultmessageisenabled.

02Parameterisusedtodeterminethemarkerlampswitchconguration.

Value0meansthetruckisequippedwithasingleswitchthatcontrols

parklamps.

Value1meansthetruckisequippedwithasingleswitchthatcontrolsboth

cabandtrailermarkerlamps.

Value2meansthetruckisequippedwithseparateswitches,oneforcab

markerlamps,anotherfortrailermarkerlamps.

thesettingsscreen.

Value0/Disabledmeansthedarkcabinfeatureisnotavailable.

Value1/Enabledmeansthedarkcabinfeatureisavailable.

0300Parameterisusedtosetthelevelatwhichtheaxleoiltemperaturetelltale

willtrigger.

switch-outputpair

switch-outputpair

switch-outputpair

switch-outputpair

switch-outputpair

switch-outputpair

switch-outputpair

switch-outputpair

Parameterisusedtosettheinterlockspeedcutoffforthecorresponding

EOAswitch-outputpair

Parameterisusedtosettheinterlockspeedcutoffforthecorresponding

EOAswitch-outputpair

Parameterisusedtosettheinterlockspeedcutoffforthecorresponding

EOAswitch-outputpair

Explanation

PM819023/KM815057(08/14/2012)

7-19

7

CECUParameter

PartNumber

Q30-1024-171ElectricOverAirFunction4

SpeedCutoff

Q30-1024-172ElectricOverAirFunction5

SpeedCutoff

Q30-1024-173ElectricOverAirFunction6

SpeedCutoff

Q30-1024-174ElectricOverAirFunction7

SpeedCutoff

Q30-1024-175ElectricOverAirFunction8

SpeedCutoff

Q30-1008-501EditableT elltale1IconIDUsedbyESAtoselecttheIcondisplayedinmonitorandsimulatemodes.

Q30-1008-517EditableT elltale3IconIDUsedbyESAtoselecttheIcondisplayedinmonitorandsimulatemodes.

Q30-1008-518EditableT elltale2IconIDUsedbyESAtoselecttheIcondisplayedinmonitorandsimulatemodes.

Q30-1008-519EditableT elltale4IconIDUsedbyESAtoselecttheIcondisplayedinmonitorandsimulatemodes.

Q30-1008-520EditableT elltale5IconIDUsedbyESAtoselecttheIcondisplayedinmonitorandsimulatemodes.

Q30-1008-522EditableT elltale6IconIDUsedbyESAtoselecttheIcondisplayedinmonitorandsimulatemodes.

Q30-1008-524EditableT elltale8IconIDUsedbyESAtoselecttheIcondisplayedinmonitorandsimulatemodes.

Q30-1008-526EditableT elltale9IconIDUsedbyESAtoselecttheIcondisplayedinmonitorandsimulatemodes.

Parameter

Description

Min.

Value

Max.

Value

Parameterisusedtosettheinterlockspeedcutoffforthecorresponding

EOAswitch-outputpair

Parameterisusedtosettheinterlockspeedcutoffforthecorresponding

EOAswitch-outputpair

Parameterisusedtosettheinterlockspeedcutoffforthecorresponding

EOAswitch-outputpair

Parameterisusedtosettheinterlockspeedcutoffforthecorresponding

EOAswitch-outputpair

Parameterisusedtosettheinterlockspeedcutoffforthecorresponding

EOAswitch-outputpair

Doesnoteffectanyvehiclefunctions.RefertoQ30-1008drawing.

Doesnoteffectanyvehiclefunctions.RefertoQ30-1008drawing.

Doesnoteffectanyvehiclefunctions.RefertoQ30-1008drawing.

Doesnoteffectanyvehiclefunctions.RefertoQ30-1008drawing.

Doesnoteffectanyvehiclefunctions.RefertoQ30-1008drawing.

Doesnoteffectanyvehiclefunctions.RefertoQ30-1008drawing.

Doesnoteffectanyvehiclefunctions.RefertoQ30-1008drawing.

Doesnoteffectanyvehiclefunctions.RefertoQ30-1008drawing.

Explanation

7-20

PM819023/KM815057(08/14/2012)

7

VoltmeterTrimProcedure

Usethefollowingstepswhendeterminingthe
appropriateparametervaluesfortheVoltageTrim
MultiplierandVoltageTrimOffset.

1.Settheparkbrakeandturnignitionkeytothe
ONposition.

2.MakesuretheVoltmeterTrimOffsetand
VoltmeterTrimMultiplierparametersareset
tothedefaultvalues.UsingESA,select
'Parameters'fromthemainmenuscreen,
thenselect'StandardGauges',thenscroll
downtoviewtheVoltmeterTrimOffsetand
VoltmeterTrimMultiplier.Ifthevaluesfor
theseparametersarenotsetatthedefault
values,useESAtoresetthevaluesasfollows:

a.DefaultVoltmeterTrimOffset=5,000

b.DefaultVoltmeterTrimMultiplier=100,000

NOTE

Tocorrectlycalibratethevoltmeter,boththe
VoltmeterTrimOffsetandVoltmeterTrim
Multiplierparametersmustberesettotheir
defaultvaluesbeforeperformingthisprocedure.

VoltmeterTrimValuesWorksheet

VehicleV oltage

ProcedureValue

STEP3:MeasuredBATTV oltageEngine

Off

STEP6:MeasuredBATTV oltageEngine

Running

STEP4:DisplayedBATTV oltageEngine

Off

STEP7:DisplayedBATTV oltageEngine

Running

EntryEntryResult

B-A=E

D-C=F

E+F=G

CxG=H

A-H=I

Ix1,000=J

J+5,000=K

Gx100,000=L

K=VoltmeterTrimOffsetValue

L=VoltmeterTrimMultiplierValue

Worksheet

Entry

A

B

C

D

3.Measurethevoltageatthebatteries.Record
thevalueontheworksheetas“Measured
BatteryVoltageEngineOff”.

4.NotethedisplayedvoltageusingESAorwith
theVoltmeterCVSG.Recordthevalueon
theworksheetas“DisplayedBatteryVoltage
EngineOff”.

5.StarttheEngine.

6.Measurethevoltageatthebatteries(same
placeasinstep3).Recordthevalueon
theworksheetas“MeasuredBatteryVoltage
EngineRunning”.

7.NotethedisplayedvoltageusingESAorwith
theVoltmeterCVSG.Recordthevalueon
theworksheetas“DisplayedBatteryVoltage
EngineRunning”.

8.Performthecalculationsontheworksheet
todeterminetheappropriatevaluesforthe
VoltageTrimMultiplierandVoltageTrimOffset.

9.UseESAtosettheparametervaluestothe
calculatedvalues.

PM819023/KM815057(08/14/2012)

7-21

7-22

PM819023/KM815057(08/14/2012)

8

8

CabElectronicControlUnit(CECU)..8-2

DisplayDiagnosticCodes.......8-4

ElectricOverAirSwitches......8-11

HowItWorks

PM819023/KM815057(08/14/2012)

8-1

8

CabElectronicControlUnit(CECU)

FunctionalDescription

Theheartofthemultiplexedinstrumentation
systemistheCECU.RefertotheControlUnit
Locationsonpage3-2sectionofthismanualfor
locationviewsoftheofCECU.

VehiclecomponentinputsaresenttotheCECU
throughtheJ1939databusesorconventional
wiring.TheCECUinterpretsthevariousinputs
andmonitors/controlsthefunctionsforeachinput
throughtheCECUsoftware.Outputmessages
fromtheCECUprovidedataforthegauges,
warninglamps,audiblealarms,anddisplays
insidethecluster.Additionally,theCECUprovides
outputfortheHVACcontroller.

TheCECUreceivesdatarelatedtocontrollingthe
variousdevicesoftheelectricalsystem.Itthen
makesdecisionsbasedonthatinputandsends
informationtosubsystemcontrolmodulesabout
whatthatsystemshoulddowiththecomponents
itcontrols.

CECUArchitecture

Thesoftwareprogrammingofthecontrolunitcan
begroupedintothreemaintypes:

•RunTime(RT)-whichactsastheoperating
systemwhereallcommunicationtakesplace.

•ProgrammableLogicController(PLC)Code­manufacturerspecicprogrammedcodeand
softwarethatisdeveloped,accessibleand
editable.

•VendorModule-blocksofcodethatare
developedforspecicmanufacturersto
allowotherfeaturestobeimplementedmore
efciently.

Currently,ESAcanlookatallinformationthatis
communicatedbetweentheRTandPLCCode
portionsoftheCECUsoftware.Anysignals,
whethertheyareinputs,outputs,ordataline
signals,sentbetweentheRTandPLCCodeare
visibletoESA.Thesearethesignalsthatmaybe
monitoredandsimulatedusingESA.

WhenusedinconjunctionwiththeElectronic
ServiceAnalyst(ESA)diagnosticsoftwaretool,
thetechniciancanreviewfaultcodesstoredin
theCECU,verifywhethertheinstrumentationis
workingproperlyanddiagnosetherootcauseof
theproblemmoreeasily.

LimitationswithESAarefoundinthe
communicationswiththepre-developedVendor
Modules.Currentlythisinformationisnotvisible
toESA.SomefeaturesthathaveVendorModule
programming,suchastheodometerandthe
messagedisplay,arenotavailabletomonitor
and/orsimulatethroughESA.

TheCECUwillacceptJ1939signalsfromthe
B-CANandaverylimitedselectionofsignalson
theV-CAN.Diagnosticcodesforthesedevices
arenotcontainedinthisservicemanual.

TheBCANisdesignedtoacceptcustomer
installeddevicesthroughaconnectorontheCAN
wire.DevicesinstalledontheBCANMUSTuse
theprovidedconnectortofunctionproperly .Any
devicethatissplicedintotheCANwirewillnot
functionproperly.

TheVCANisdesignedwithconnectorsforan
optionaltelematicsdevice.Anytelematicsdevice
connectedtoaCANwireotherthantheVCANwill
notfunctionproperly .Notalltelematicdeviceswill
berecognizedbytheCECU.

8-2

PM819023/KM815057(08/14/2012)

8

CAUTION

Anyattempttocutorattachdirectlytothe
CANwireexceptthroughaprovidedconnector,
maycauseequipmentmalfunction,equipment
damageandwillvoidthemanufacturer’s
warranty.

ChassisNode

Thenodethatreceivesinformationfromthe
CECUtocontrol,exteriorlighting,Electricover
Aircontrols,andwindshieldwipersiscalledthe
chassisnode.Thechassisnodeservesasa
bidirectionalconduitforbothinformationand
control.

Theseinputsarehardwiredtothechassisnode
andbroadcasttotheCECU.

•Ammeter

•AuxiliaryTransmissionOilT emperature

•AxleTemperature,Rear

•AxleTemperature,Front

•AxleT emperature,Center/Steer

•BackUpSwitch

•DifferentialLockT elltale

•FuelFilterRestriction

•GeneralOilTemperature

•PTOOilT emperature

•TransferCaseOilTemperature

Theinputsfromthesesensorsarefedintothe
chassisnodewheretheinformationisthen
processedintodataandsenttotheCECUbyway
oftheCAN(ControllerAreaNetwork)databus,
specicallytheF-CAN.Inadditiontoreceivingand
processingsensordata,thechassisnodealso
controlstheoperationofrelaysthatpowerseveral
electricalsubsystems.Theseinclude:

•BackUpAlarm

•WindshieldWasher

Theinformationsentfromthesensorsattachedto
thechassisnodeissenttotheCECU,processed,
andwhereappropriatereturnedtothechassis
intheformofcommandsrelatedtotheoutputs
controlledbythechassisnode.

Thedesignandmanufactureofthechassisnode
issuchthatitisdeliveredtotheplantordealership
withoutcongurationparametersloadedintoit.
Upontherstpowercycleofthesystemthe
CECUdownloadstheappropriateconguration
parameterssothatthechassisnodecansetup
itsI/Ocorrectly.Dependingonthesoftware
congurationoftheCECU,theseparameters
maybedifferentthanothertrucksandunique

PM819023/KM815057(08/14/2012)

8-3

8

tothespecicrequirementsofthetruckbeing
assembled.Oncethechassisnodehasreceived
itscongurationparameters,itstorestheminash
memorypermanentlyanddoesnotrequireany
additionaldownloadsfromtheCECU.Thisisa
onetimeevent,andoncecomplete,thechassis
nodecanberemovedandreinstalledwithoutthe
needofapowercycle.

NOTE

Whenreplacingachassisnode,disconnectthe
batteriesanddonotreconnectthemuntilthe
newnodeinstallationandallwiringconnections
arecomplete.Anewchassisnodeandthe
CECUneedtobepoweredupsimultaneously
duringthenode'srstpowercycle;otherwise
afaultontheinformationdisplaywillindicate
thattheCECUisnotrecognizingtheproper
communicationwiththechassisnode.

TheproblemoccurswhentheCECUandchassis
nodearenotpoweredupsimultaneouslyduring
therstpowercycle.Thismayhappenfora
varietyofreasonswhichinclude;missingchassis
node,missingfuses,harnessingnotconnected,
etc.IftheCECUrecognizesthatthechassisnode
isnotcommunicatingasexpected,itwilltriggera
faultintheinformationdisplay .Cyclingtheignition
willnotcorrectthisproblemsincetheparameter
leisonlytransmittedtothechassisnodeaftera
completebatterypowercycle.

DisplayDiagnosticCodes

Thissectiondescribestheinformationdisplay
textintheDiagnosticScreenandtheDTC
thattriggeredit.Inthefollowingtable,the"xx"
representsanytwodigitFailureModeIndicator
(FMI).

Thefollowingdisplaycodesaregroupedby
source(systemorcontrollertheDTCrelatesto).

Performacompletebatterypowercyclebycycling
batterypowerdirectlyatthebatteries.Battery
powershouldberemovedfromthesystemforat
least30secondsduringthepowercyclesothat
allelectricaldevicescompletelydischargeandare
trulypowereddown.

8-4

PM819023/KM815057(08/14/2012)

8

ABSRelatedDisplayCodes

ForABSrelatedcodesrefertotheappropriate
ABSservicetoolandABSservicemanual.

ABSDiagnosticTroubleCodes

DisplayTextDTC

DiffLockSolenoid564xx

ASROffroadSwitch576xx

SystemDiagnosticCode4614xx

SystemVoltage627xx

ECUFault629xx

ECUFault630xx

J1939639xx

SALEFTWheelSpeedSensor789xx

SARIGHTWheelSpeedSensor790xx

DALEFTWheelSpeedSensor791xx

DARIGHTWheelSpeedSensor792xx

AALEFTWheelSpeedSensor793xx

AARIGHTWheelSpeedSensor794xx

SALEFTPMV795xx

SARIGHTPMV796xx

DALEFTPMV797xx

DARIGHTPMV798xx

AALEFTPMV799xx

AARIGHTPMV800xx

RetarderRelay801xx

RelayDiagonal1802xx

TCVDASolenoid806xx

TCVSASolenoid807xx

WheelSpeedSensorReversed810xx

ABSLampFault81 1xx

StopLampSwitch1045xx

TrailerPMV1056xx

SUSPPressureSensor1059xx

PressureSensor1067xx

PressureSensorSecondaryCircuit1068xx

TiresSizeOutOfRange1069xx

SASSignal1807xx

YRSSensor1808xx

LASSensor1809xx

ConnectServiceT oolAnyOther

ACCSensorMisaligned88607

GeneralACCFault.ConnectServiceT ool88614

ACCNotAvailableduetoTemp.BrakeOv.383916

CECURelatedDisplayCodes

Thesetableslistthesystemandcircuitandthe
relatedDTCcode.ForalistingofDTCcodesin
numericalorder,pleaserefertothetablesshown
inChapter12.Inaddition,thecompletetablealso
containsfulldescriptionsofthecodeandtheFMI
values.

FortroubleshootingofCECUrelatedcodesrefer
totheappropriateinstrumentationservicemanual.

CECUDiagnosticTroubleCodes

DisplayTextDTC

FuelFilterRestriction16xxonpage12-2

WaitStarterCooldownEnforced1675xxonpage12-10

HighBeamLamp(s)Fault2348xxonpage12-10

LowBeamLamp(s)Fault2350xxonpage12-10

LeftFrontLamp(s)Fault2368xxonpage12-1 1

RightFrontLamp(s)Fault2370xxonpage12-1 1

LeftRearLamp(s)Fault2372xxonpage12-11

RightRearLamp(s)Fault2374xxonpage12-11

MarkerLamp(s)Fault2378xxonpage12-12

ClearanceLamp(s)Fault2382xxonpage12-12

PrimaryFogLampsFault2388xxonpage12-12

SecondaryFogLampsFault2390xxonpage12-12

LeftTrailerLamp(s)Fault2396xxonpage12-13

RightTrailerLamp(s)Fault2398xxonpage12-13

CurrentSensorFault2579xxonpage12-13

MainLightSwitchFault2872xxonpage12-14

Sec.LightSwitchFault2873xxonpage12-14

HighBeamSwitchFault2874xxonpage12-15

HazardSwitchFault2875xxonpage12-15

TurnLampSwitchFault2876xxonpage12-15

CECUPowerInput3509xxonpage12-15

CECUPowerInput3510xxonpage12-15

CorrectatNextService3511xxonpage12-15

CorrectatNextService3512xxonpage12-15

CorrectatNextService3513xxonpage12-15

CorrectatNextService3514xxonpage12-15

CorrectatNextService5125xxonpage12-16

CorrectatNextService5126xxonpage12-16

CorrectatNextService5127xxonpage12-16

CorrectatNextService5128xxonpage12-16

VehicleSpeedMessageMissing8409onpage12-3

AccelPedalMessageMissing9109onpage12-3

App.AirPressureSensorOpen11603onpage12-3

App.AirPressureSensorShort11604onpage12-3

Pri.AirPressureSensorOpen11703onpage12-3

Pri.AirPressureSensorShort1 1704onpage12-3

Sec.AirPressureSensorOpen11803onpage12-3

Sec.AirPressureSensorShort11804onpage12-4

IgnitionPowerCircuitFault15802onpage12-4

IgnitionPowerCircuitFault15803onpage12-4

IgnitionPowerCircuitFault15804onpage12-4

ControlUnitOverVoltage16800onpage12-4

ControlUnitUnderVoltage16801onpage12-4

PM819023/KM815057(08/14/2012)

8-5

8

CECUDiagnosticTroubleCodes

DisplayTextDTC

OutsideT empSensorOpen17103onpage12-4

OutsideT empSensorShort17104onpage12-5

InstantEconomyMessageMissing18409onpage12-5

EngineSpeedMessageMissing19009onpage12-5

OdometerOffsetRecalculated24510onpage12-5

EngineHoursMessageMissing24709onpage12-5

TotalPTOHoursMessageMissing24809onpage12-6

GaugeBusPowerOpenCircuit67805onpage12-7

GaugeBusPowerShortCircuit67806onpage12-7

Pri.FuelLevelSensorOpen82903onpage12-7

Pri.FuelLevelSensorShort82904onpage12-8

VehicleDistanceMessageMissing91709onpage12-8

TotalPTOFuelMessageMissing102809onpage12-8

InstrumentBusCommFailure123109onpage12-8

ABSJ1939Failure148109onpage12-9

Trans.J1939Failure148209onpage12-9

EngineJ1939Failure148309onpage12-9

DashDimmerSwitchOpen149106onpage12-9

DashDimmerSwitchShort149206onpage12-9

ConnectServiceT oolAnyOther

DPFRelatedDisplayCodes

ForDPFrelatedcodes,refertotheappropriate
engineservicetoolandengineservicemanual.

DPFDiagnosticTroubleCodes

DisplayTextDTC

ExhaustTrapInletPressure81xx

VehicleSpeedSensor84xx

FuelDeliveryPressure94xx

BoostPressure102xx

BarometricPressure108xx

SwitchedPower158xx

EngineFuelRate183xx

EngineSpeed190xx

TotalDistanceTraveled245xx

EnginePercentT orque513xx

J1939Datalink639xx

AUXI/OCircuit1701xx

AUXI/OCircuit2702xx

AUXI/OCircuit3703xx

AUXI/OCircuit4704xx

AUXI/OCircuit5705xx

AUXI/OCircuit6706xx

AUXI/OCircuit7707xx

AirSupplyPressureInput1087xx

ExhaustGasT emp13241xx

ExhaustGasT emp33245xx

ExhaustGasT emp23249xx

ParticulateTrap1Pressure3251xx

CatalystDosingUnit3361xx

DPFFuelPressureActuator13471xx

DPFAirPressureActuator13472xx

DPFPurgeAirPressure3486xx

PartTrap1RegenNotAvailable3750xx

ConnectServiceT oolAnyOther

8-6

PM819023/KM815057(08/14/2012)

8

EngineRelatedDisplayCodes

Forenginerelatedcodes,refertotheappropriate
engineservicetoolandengineservicemanual.

EngineDiagnosticTroubleCodes

DisplayTextDTC

EGRValveLeakage27xx

SecondaryFuelLevel38xx

IntercoolerCoolantT emperature52xx

TwoSpeedAxleSwitch69xx

ParkBrakeSwitch70xx

MaxVehicleSpeedLimit74xx

ExhaustTrapInletPressure81xx

VehicleSpeedSensor84xx

ThrottlePosition91xx

AUXT orqueSwitch93xx

FuelDeliveryPressure94xx

FuelFilterRestriction95xx

FuelT ankLevel96xx

WaterInFuel97xx

EngineOilLevel98xx

EngineOilFilter99xx

EngineOilPressure100xx

CrankcasePressure101xx

BoostPressure102xx

TurboSpeed103xx

IntakeManifoldAirT emp105xx

IntakeManifoldPressure106xx

BarometricPressure108xx

EngineCoolantT emperature110xx

LowCoolantLevel11 1xx

WaterPump112xx

EngineDroop113xx

InletAirMassFlowRate132xx

FuelRailPressure157xx

SwitchedPower158xx

RatedEnginePower166xx

AlternatorPotential167xx

Battery168xx

AmbientAirT emperature171xx

AirInletT emperature172xx

ExhaustGasT emperature173xx

FuelT emp174xx

EngineOilT emperature175xx

EngineFuelRate183xx

EngineSpeed190xx

TransOutputSpeed191xx

TripFuel231xx

TotalDistanceTraveled245xx

ClockRealTime251xx

EGRDeltaPressure411xx

EGRT emp412xx

OEMAUXT emperature441xx

EnginePercentT orque513xx

RetarderT orque520xx

GearOutofRange524xx

EngineDiagnosticTroubleCodes

DisplayTextDTC

ReferenceRetarder556xx

ThrottleSwitch558xx

TorqueConverterLockup573xx

EngineIdleTimerOverride592xx

IdleShutdownOccurrence593xx

EngineIdleShutdownAlert594xx

CruiseEnableSwitch596xx

BrakeSwitch597xx

ClutchSwitch598xx

CruiseSetSwitch599xx

CruiseDecelSwitch600xx

CruiseResumeSwitch601xx

CruiseAccelSwitch602xx

BrakePedalSwitch2603xx

J1708DataLinkError608xx

SystemDiagnosticCode1611xx

SystemDiagnosticCode2612xx

SystemDiagnosticCode3615xx

5VSupply1620xx

RedStopLampStatus623xx

AmberStopLampStatus624xx

IntakeAirHeater626xx

ECUPowerLoss627xx

ECUWarning629xx

EngineSoftwareError630xx

EngineSoftwareError631xx

FuelShutoffV alve632xx

FuelControlValve633xx

TimingActuator635xx

EngineSpeedSignal637xx

J1939Datatlink639xx

AUXDualOutputShutdown640xx

TurboActuator641xx

EngineExternalSpeedCommand644xx

FanClutchDriver647xx

BPVDiagSLMPData649xx

InjectorSpillValve1651xx

InjectorSpillValve2652xx

InjectorSpillValve3653xx

InjectorSpillValve4654xx

InjectorSpillValve5655xx

InjectorSpillValve6656xx

InjectorSpillValve7657xx

InjectorSpillValve8658xx

InjectorSpillValve9659xx

InjectorSpillV alve10660xx

InjectorSpillV alve1 1661xx

InjectorSpillV alve12662xx

StarterSolenoid677xx

8VSupply678xx

AUXPWMDriver697xx

AUXI/OCircuit1701xx

AUXI/OCircuit2702xx

AUXI/OCircuit3703xx

AUXI/OCircuit4704xx

PM819023/KM815057(08/14/2012)

8-7

8

EngineDiagnosticTroubleCodes

DisplayTextDTC

AUXI/OCircuit5705xx

AUXI/OCircuit6706xx

AUXI/OCircuit7707xx

SpeedSensor2723xx

InletAirHeater729xx

A/CCompClutchSwitch876xx

FrontAxleSpeed904xx

PWMOutput923xx

AuxiliaryOutput2925xx

AuxiliaryOutput3926xx

FuelPumpActuator931xx

EngineRetarder973xx

RemoteAccel974xx

FanControlOutput977xx

PTOSetSpeedSwitch979xx

PTOEnableSwitch980xx

RemotePTOResumeSwitch982xx

RemotePTOSetSwitch984xx

A/CPressureSwitch985xx

FanRequestSpeed986xx

SensorSupplyVoltage1043xx

FanDriver1071xx

EngineBrake(Jake)1072xx

EngineBrake(Jake)1073xx

ExhaustBrakeActuator1074xx

FuelLiftPump1075xx

FuelInjectionPumpCalibration1076xx

FuelInjectionPumpControl1077xx

5VSupply11079xx

5VSupply21080xx

EngineRetarderT orque1085xx

AirSupplyPressureInput1087xx

EngineWarningState1107xx

EngineNearShutdown1 109xx

EngineBrakeOutput1112xx

FootBrakeSwitch1121xx

PostIntercoolerT emp1 131xx

ECUT emp1 136xx

TurboInletTemperature1 172xx

TurboWastegateActuator1 188xx

Anti-Theft1195xx

Anti-Theft1196xx

ExhaustGasPressure1209xx

WaterPumpT emp1212xx

FaultCANBus21231xx

EngineShutdownSwitch1237xx

HighFuelLeakage1239xx

FuelControlValve1244xx

TimingActuator1245xx

OilBurnValve1265xx

IdleShutdown1267xx

StarterSolenoid1321xx

FuelRail11347xx

FuelRail21348xx

InjectorRail1349xx

EngineDiagnosticTroubleCodes

DisplayTextDTC

ChangeEngineOil1378xx

EngineOilLevel1380xx

FuelFilter1382xx

AUXT emp11385xx

AUXPressure1388xx

PressureReliefV alve1442xx

ECUPowerRelay1485xx

InjectorBoostVoltage1542xx

EngineDerated1569xx

CruiseSpeedOutofRange1588xx

CruiseSpeedOutofRange1590xx

CruisePauseSwitch1633xx

IntakeAirT emperature1636xx

FanSpeed1639xx

AutoStartFailed1664xx

DemandRetarder1715xx

RetarderSelection1716xx

CatalystT ankLevel1761xx

MaximumRetarderSpeed1780xx

YCEngineControl1817xx

YCBrakeControl1819xx

AccelPedalPosition2623xx

Turbo12629xx

AuxiliaryOutput42646xx

AuxiliaryOutput52647xx

EGRMassFlow2659xx

Turbo1Inlet2789xx

Turbo1Output2790xx

EGR2791xx

VGTPosition2795xx

EngineInjectorCalibration2797xx

AirShutdownActuator2813xx

TransCrankEnable2900xx

IntakeValveOilPressure2948xx

IntakeValveOilPressure2949xx

IntakeValveActuator12950xx

IntakeValveActuator22951xx

IntakeValveActuator32952xx

IntakeValveActuator42953xx

IntakeValveActuator52954xx

IntakeValveActuator62955xx

CoolantDriver2988xx

CatalystMissing3050xx

EGRPlugged3058xx

J1939DPFMonitor3064xx

ExhaustGasT emp13241xx

ParticulateTrapInletT emp13242xx

ExhaustGasT emp33245xx

ParticulateTrapOutletT emp3246xx

ExhaustGasT emp23249xx

ParticulateTrap1Pressure3251xx

ParticulateTrap2T emp3258xx

ParticulateTrap2InletTemp3276xx

ParticulateTrap2OutletTemp3280xx

ParticulateTrap2Pressure3285xx

8-8

PM819023/KM815057(08/14/2012)

8

EngineDiagnosticTroubleCodes

DisplayTextDTC

CatalystDosingUnit3361xx

DPFFuelPressureActuator13471xx

DPFAirPressureActuator13472xx

DPFIgnitionFailure3473xx

DPFIgnitionLoss3474xx

DPFFuelPressureControl3479xx

DPFFuelPressureVoltage3480xx

RegenFuelRate3481xx

DPFFuelEnableActuator3482xx

DPFIgnitionCurrent3484xx

DPFPurgeAirPressure3486xx

DPFAirPressureControl3487xx

DPFPurgeAirActuator3490xx

DPFFuelPressure3494xx

SensorSupplyVoltage13509xx

SensorSupplyVoltage23510xx

SensorSupplyVoltage33511xx

SensorSupplyVoltage43512xx

SensorSupplyVoltage53513xx

RegenManuallyDisabled3530xx

AmbientAirDensity3555xx

DPFFuelInjector1NoResponse3556xx

ECUPowerOutput3598xx

EngineInjector1Actuator23659xx

EngineInjector2Actuator23660xx

EngineInjector3Actuator23661xx

EngineInjector4Actuator23662xx

EngineInjector5Actuator23663xx

EngineInjector6Actuator23664xx

ParticulateTrapRegenInhibitSwitch3695xx

ParticulateTrapRegenForceSwitch3696xx

ActiveRegenSwitchedOff3703xx

ParticulateTrapRegenInhibited371 1xx

ParticulateTrapSootLoadPercent3719xx

PartTrap1RegenNotAvailable3750xx

DPFSecondaryAirDiffPressure3830xx

DPFSecondaryAirMassFlow3832xx

NOxLimitExceedDuetoQuality4094xx

NOxLimitExceedDuetoQuantity4096xx

NOxLimitExceedDuetoQuality4094xx

NOxLimitExceedDuetoQuantity4096xx

DPFFuelDrainV oltage4097xx

AftertreatmentDEFTankLowLevelIndicator5245xx

AftertreatmentSCROperatorInducement

Severity

ElectronicTransControl161442xx

ElectronicTransControl261445xx

SWDDerateLampData65519xx

EXTPWMPCAC65520xx

J1939CMDPFState65521xx

J1939CMDPFShutdown65522xx

EXTPWMBackPressure65523xx

J1939CMDPFPostFilter65524xx

J1939CMDPFFailWOEngine65525xx

EngineDiagnosticTroubleCodes

DisplayTextDTC

J1939CMDPFFailAndEngine65526xx

J1939CMDPFLampData65527xx

FuelInjector246HI65528xx

FuelInjector135HI65529xx

FuelInjector4LampData65530xx

FuelInjector2LampData65531xx

FuelInjector6LampData65532xx

FuelInjector3LampData65533xx

FuelInjector5LampData65534xx

FuelInjector1LampData65535xx

CGIMassFlowRate520192xx

CGIGasT emp520193xx

CGIActuatorShaftPosition520194xx

CGIDiffPressure520196xx

CGIAbsolutePressure520197xx

SeeOperator'sManualAnyOther

5246xx

PM819023/KM815057(08/14/2012)

8-9

8

HVACRelatedDisplayCodes

ForHVACrelatedcodes,refertotheappropriate
servicetoolandHV ACservicemanual.

HVACDiagnosticT roubleCodes

DisplayTextDTC

LowRefrigerantCharge871xx

CompressorClutchRelayCircuit876xx

A/CEvaporatorT emperature1547xx

CABHV ACTemperatureControlActuator3986xx

CabHV ACModeControlActuatorPanel3981xx

CabHV ACModeControlActuatorDefrost520196xx

CabHV ACModeControlActuatorFloor520197xx

CabHV ACRecirculationDoorControlActuator3984xx

CabHVACSystemController3985xx

HVACBlowerMotorSpeedAdjustment1553xx

BatteryPotential/PowerInput1168xx

PressureSensorsupplyvoltage3509xx

J1939Network639xx

Sunloadsensor919xx

TransmissionRelatedDisplayCodes

Fortransmissionrelatedcodes,refertothe
appropriatetransmissionservicetooland
transmissionservicemanual.

TransmissionDiagnosticT roubleCodes

DisplayTextDTC

CorrectatNextService3359xx

CorrectatNextService4177xx

CorrectatNextService4178xx

ConnectServiceT oolAnyOther

8-10

PM819023/KM815057(08/14/2012)

8

ElectricOverAirSwitches

ElectricOverAir(EOA)switchesinitiateelectrical
signalstocontrolair-valvesinordertoactivate
anddeactivateairfunctions.

Functionaldescription

TheEOASystemisdescribedasthefollowing:
electricalswitchessendalogicsignaltothe
CECUthatsigniesastatechangeintheair
function.TheCECUinputstheswitchstates
andappliesasoftwareinterlock,ifapplicable,
toensurethatalldenedparametersforthe
specicinterlockaremetbeforeallowingthe
functiontochangestates.Oncetheinterlock
conditionshavebeenmet,theCECUsendsan
SAEJ1939multiplexedmessagetotheChassis
Node.TheChassisNodeacceptsthemultiplexed
messageandactivates/deactivatesthedesired
outputcorrespondingtoaspecicaccessoryair
solenoid.Thefollowingtableprovidesalistofall
aircontrolsthatalsocontainaCECUsoftware
interlockcondition.Thetabledoesnotinclude
anyinterlocksprogrammedintootherECU's
(suchastheTransmissionorEngineECU)or
anymechanicalinterlocksdesignedintotheair
system.Thesecondcolumnwillshowwhat
conditionmustbetruefortheaircontroltofunction
andthelastcolumnprovidesprogrammablelimits
iftheparameteriscongurable.Iftheinterlock
isnotprogrammable,thenthecellhasbeenleft
blank.Ifaninterlockhasbeenactivated,the
instrumentclusterwillprovideoperatorinstructions
onhowtoresolvetheinterlock.

NAMUX4SoftwareEOAInterlocks

Function

Description

2-SpeedRearAxle

Switch

AirAccessorySwitchParkBrakesSet

AirSuspensionDump

Switch

AirSuspensionDump

Switch

AirSuspension

Over-InationSwitch

(KenworthOnly)

AuxTrans3-Position

ControlSwitch

FifthWheelSlide

Switch

Front-AxleDeclutch

Switch

(KenworthOnly)

Inter-AxleDifferential

LockSwitch

InterlockConditionParameter

Inter-AxleDiff.Lock

SwitchOff

ParkBrakesSet

ParkBrakesSet

UnderSpeedThreshold=

5mph(8km/h)

UnderSpeedThreshold=

25mph(40km/h)

ParkBrakesSet

UnderSpeedThreshold=3

mph(5km/h)

UnderSpeedThreshold=

25mph(40km/h)

UnderSpeedThreshold=

25mph(40km/h)

Limits

0-10mph(0-16

km/h)

0-5mph(0-8

km/h)

0-70mph(0-1 12

km/h)

25-70mph(40-

112km/h)

PM819023/KM815057(08/14/2012)

8-11

8

Function

Description

KingpinRelease

Switch

PTOSwitch#1ParkBrakesSet

PTOSwitch#2ParkBrakesSet

PTOT wo-Position

Switch

TrailerAirSuspension

DumpSwitch

TrailerDumpGate

Switch

(KenworthOnly)

TrailerCenterDump

GateSwitch

(KenworthOnly)

TrailerForwardDump

GateSwitch

(KenworthOnly)

TrailerRearDump

GateSwitch

(KenworthOnly)

TransferCase

Engage/Disengage

Switch

(KenworthOnly)

TransferCaseHi/Low

Switch

TruckDumpGate

Switch

(KenworthOnly)

WheelDiff.Lock

FrontAxleSwitch

WheelDiff.Lock

ForwardRearAxle

Switch

WheelDiff.Lock

CenterRearAxle

Switch

(KenworthOnly)

WheelDiff.LockRear

RearAxleSwitch

WheelDiff.Lock

SingleRearAxle

Switch

(KenworthOnly)

WheelDiff.LockDual

RearAxlesSwitch

InterlockConditionParameter

ParkBrakesSet

ParkBrakesSet

UnderSpeedThreshold=

5mph(8km/h)

ParkBrakesSet

UnderSpeedThreshold=

25mph(40km/h)

UnderSpeedThreshold=

25mph(40km/h)

UnderSpeedThreshold=

25mph(40km/h)

UnderSpeedThreshold=

25mph(40km/h)

UnderSpeedThreshold=

1mph(1.6km/h)Range:

1-1ANDTransmissionin

Neutral

UnderSpeedThreshold=

1mph(1.6km/h)Range:

1-1ANDTransmissionin

Neutral

UnderSpeedThreshold=

25mph(40km/h)

UnderSpeedThreshold=

25mph(40km/h)

UnderSpeedThreshold=

25mph(40km/h)

UnderSpeedThreshold=

25mph(40km/h)

UnderSpeedThreshold=

25mph(40km/h)

UnderSpeedThreshold=

25mph(40km/h)

UnderSpeedThreshold=

25mph(40km/h)

Limits

0-10mph(0-16

km/h)

0-40mph(0-64

km/h)

0-40mph(0-64

km/h)

0-40mph(0-64

km/h)

0-40mph(0-64

km/h)

0-40mph(0-64

km/h)

8-12

PM819023/KM815057(08/14/2012)

12

12

DiagnosticTroubleCodes......12-2

CANTroubleshootingProcedures.12-16

TerminatingResistorTestProcedure12-17

DataCollection..........12-18

DiagnosingtheVCANTrunk....12-19

DiagnosingtheVCANBranch...12-21

DiagnosingDevicesonaCANLine.12-22

DiagnosingtheECAN.......12-23

DiagnosingtheTCAN.......12-25

DiagnosingtheCCAN(without

DiagnosingtheCCAN(with

Troubleshooting

MultifunctionSteeringWheel)..12-27

MultifunctionSteeringWheel)..12-29

PM819023/KM815057(08/14/2012)

DiagnosingtheACAN(withPACCAR

MXengine)...........12-31

DiagnosingtheICAN.......12-33

DiagnosingtheBCAN,DCANor

FCAN.............12-35

LocatingaFailedResistororanOpen

BetweenTwoResistors.....12-39

12-1

12

DiagnosticTroubleCodes

Forpinpointtestsandtroubleshootingprocedures,
refertotheappropriateinstrumentationservice

Introduction

manual.Inaddition,theElectricalServicemanual
willcontainlocationinformationforharnesses

Thischartprovides:alistingofpossibleCECU
relateddiagnostictroublecodes(DTCs),detailing

andtheAirsystemmanualwillcontainlocation
informationforairpressuresensors.

thefollowing:

•Diagnostictroublecodes(DTCs)

•Wherethesignalinputisreceived

•Componentaffected

•Faultdescription

•Detailedsummaryincludingpossiblecauses

DTCInputReceived

By

1603 ChassisNodeFuelFilterRestrictionOpeninfuellterrestrictioncircuitThisDTCwillberecordedwhenthecontrolunitseesan

1604 ChassisNodeFuelFilterRestrictionShortinfuellterrestrictioncircuitThisDTCwillberecordedwhenthecontrolunitsees

7503FrontSteerAxleOil

7504FrontSteerAxleOil

7703 ChassisNodeRearDriveOilT empOpeninreardriveaxleoiltemp

7704 ChassisNodeRearDriveOilT empShortinreardriveaxleoiltemp

7803 ChassisNodeCenter/SteeraxleOil

7804 ChassisNodeCenterDriveaxleOil

Item/SystemDescriptionDetailedDescription

openorshorttogroundatthefuellterrestrictionsensor

input.Somepossiblecausesforthisareabrokenwire,

corrodedordisconnectedconnector,orsensorfailure.

ashortto+5Vatthefuellterrestrictionsensorinput.

Somepossiblecausesforthisareapinchedwire,water

inaconnector,orsensorfailure.

Openinfrontsteeraxleoiltemp

Temp

Temp

Temp

Temp

circuit

Shortinfrontsteeraxleoiltemp

circuit

circuit

circuit

Openincenterdriveaxleoiltemp

circuit

Shortincenterdriveaxleoiltemp

circuit

ThisDTCwillberecordedwhenthecontrolunitseesan

openatthefrontsteerdriveaxleoiltemperaturesensor

input.Somepossiblecausesforthisareabrokenwire,

corrodedordisconnectedconnector,orsensorfailure.

ThisDTCwillberecordedwhenthecontrolunitseesa

shorttogroundatthefrontsteeraxleoiltemperature

sensorinput.Somepossiblecausesforthisareapinched

wire,waterinaconnector,orsensorfailure.

ThisDTCwillberecordedwhenthecontrolunitseesan

openatthereardriveaxleoiltemperaturesensorinput.

Somepossiblecausesforthisareabrokenwire,corroded

ordisconnectedconnector,orsensorfailure.

ThisDTCwillberecordedwhenthecontrolunitsees

ashorttogroundatthereardriveaxleoiltemperature

sensorinput.Somepossiblecausesforthisareapinched

wire,waterinaconnector,orsensorfailure.

ThisDTCwillberecordedwhenthecontrolunitseesan

openatthecenterdriveaxleoiltemperaturesensorinput.

Somepossiblecausesforthisareabrokenwire,corroded

ordisconnectedconnector,orsensorfailure.

ThisDTCwillberecordedwhenthecontrolunitseesa

shorttogroundatthecenterdriveaxleoiltemperature

sensorinput.Somepossiblecausesforthisareapinched

wire,waterinaconnector,orsensorfailure.

12-2

PM819023/KM815057(08/14/2012)

12

DTCInputReceived

By

8409 CECUWheel-BasedVehicle

9003 ChassisNodePTOOilT empOpeninPTOoiltempcircuitThisDTCwillberecordedwhenthecontrolunitsees

9004 ChassisNodePTOOilT empShortinPTOoiltempcircuitThisDTCwillberecordedwhenthecontrolunitseesa

9109 CECUAcceleratorPedal

10703 CECUAirFilterRestrictionOpeninairlterrestrictioncircuitThisDTCwillberecordedwhenthecontrolunitsees

10704 CECUAirFilterRestrictionShortinairlterrestrictioncircuitThisDTCwillberecordedwhenthecontrolunitseesa

11603 CECUApplicationAir

11604 CECUApplicationAir

11703 CECUPrimaryAirPressureOpeninprimaryairpressurecircuitThisDTCwillberecordedwhenthecontrolunitseesan

11704 CECUPrimaryAirPressureShortinprimaryairpressurecircuitThisDTCwillberecordedwhenthecontrolunitseesa

11803 CECUSecondaryAir

Item/SystemDescriptionDetailedDescription

Wheelbasedvehiclespeed

SpeedMessage

PositionMessage

Pressure

Pressure

Pressure

messagemissing

Acceleratorpedalposition

messagemissing

Openinapplicationairpressure

circuit

Shortinapplicationairpressure

circuit

Openinsecondaryairpressure

circuit

ThisDTCwillberecordedwhenthecontrolunitdoes

notseetheWheelBasedVehicleSpeedmessagefrom

theengine,orwhenthemessagehastimedout.Some

possiblecausesforthisincludefaultywiringtotheengine

controller,incorrectengineprogrammingorafaulty

enginecontroller.

anopenatthePTOoiltemperaturesensorinput.Some

possiblecausesforthisareabrokenwire,corrodedor

disconnectedconnector,orsensorfailure.

shorttogroundatthePTOoiltemperaturesensorinput.

Somepossiblecausesforthisareapinchedwire,water

inaconnector,orsensorfailure.

ThisDTCwillberecordedwhenthecontrolunitdoesnot

seetheAcceleratorPedalPositionSpeedmessagefrom

theengine,orwhenthemessagehastimedout.Some

possiblecausesforthisincludefaultydatalinkwiringto

theenginecontroller,incorrectengineprogrammingora

faultyenginecontroller.

anopenattheairlterrestrictionsensorinput.Some

possiblecausesforthisareabrokenwire,corrodedor

disconnectedconnector,orsensorfailure.

shortto+5Vattheairlterrestrictionsensorinput.Some

possiblecausesforthisareapinchedwire,waterina

connector,orsensorfailure.

ThisDTCwillberecordedwhenthecontrolunitseesan

openorshorttogroundatthetractorbrakeapplication

airpressuresensorinput.Somepossiblecausesforthis

areabrokenwire,corrodedordisconnectedconnector,

orsensorfailure.

ThisDTCwillberecordedwhenthecontrolunitseesa

shortto+5Vatthetractorbrakeapplicationairpressure

sensorinput.Somepossiblecausesforthisareapinched

wire,waterinaconnector,orsensorfailure.

openorshorttogroundattheprimaryairpressuresensor

input.Somepossiblecausesforthisareabrokenwire,

corrodedordisconnectedconnector,orsensorfailure.

shortto+5Vattheprimaryairpressuresensorinput.

Somepossiblecausesforthisareapinchedwire,water

inaconnector,orsensorfailure.

ThisDTCwillberecordedwhenthecontrolunitseesan

openorshorttogroundatthesecondaryairpressure

sensorinput.Somepossiblecausesforthisareabroken

wire,corrodedordisconnectedconnector,orsensor

failure.

PM819023/KM815057(08/14/2012)

12-3

12

DTCInputReceived

By

11804 CECUSecondaryAir

15802 CECUIgnitionPowerIgnitionPowerisinan

15803 CECUIgnitionPower12Visoncontrolunitignitionpin

15804 CECUIgnitionPower12Visonclusterignitionpinbut

16800 CECUControlUnitBattery

16801 CECUControlUnitBattery

17102CECUOutsideAirTempOutsideairtempmessagefrom

17103 CECUOutsideAirTempOpeninoutsideairtempcircuitThisDTCwillberecordedwhenthecontrolunitseesan

Item/SystemDescriptionDetailedDescription

Shortinsecondaryairpressure

Pressure

Voltage

Voltage

circuit

indeterminatestate

butnotonclusterignitionpin

notoncontrolunitignitionpin

OvervoltageThecontrolunitcontinuallymonitorsthevoltageitis

Undervoltageformorethan10

minutes

engineerror

ThisDTCwillberecordedwhenthecontrolunitseesa

shortto+5Vatthesecondaryairpressuresensorinput.

Somepossiblecausesforthisareapinchedwire,water

inaconnector,orsensorfailure.

ThisDTCwillberecordedwhenthecontrolunitsees

between33%and66%ofbatteryvoltageontheignition

pin.Apossiblecauseforthisisfaultyignitionsense

wiring.Theignitionsensewirecomesfromthepower

distributionboxtothecontrolunitbehindthecupholder.

Thissensewireisalsousedforothercontrolunitssuch

asthedoormodulesandcluster.Thewiringtothose

controlunitsmaybetheissue.

ThisDTCwillberecordedwhenthecontrolunitsees12V

oncontrolunitignitionpinbutnotonclusterignitionpin.

Somepossiblecausesforthisareabrokenwire,corroded

ordisconnectedconnector .Ignitionpowerissuppliedto

theclusterfromthepowerdistributionboxnearthedrivers

leftfootthroughtheIPharnesstothecluster.

ThisDTCwillberecordedwhenthecontrolunitsees12V

onclusterignitionpinbutnotoncontrolunitignitionpin.

Somepossiblecausesforthisareabrokenwire,corroded

ordisconnectedconnector .Ignitionpowerissuppliedto

thecontrolunitfromthepowerdistributionboxnearthe

driversleftfootthroughtheIPharnesstothecontrolunit

behindthecupholder.

supplied.Ifthevoltageisabove16.5voltsthesystemwill

recordthisfault.Somepossiblecausesforthisfaultare

faultyalternator,orjumpstartingwithtohighofvoltage.

Powerissuppliedfromthepowerdistributionboxnear

thedriversleftfootthroughtheIPharnesstothecontrol

unitbehindthecupholder.

Thecontrolunitcontinuallymonitorsthevoltageitis

supplied.Ifthevoltageisbelow8.4voltsfor10minutes

thesystemwillrecordthisfault.Somepossiblecausesfor

thisfaultarelowbatteries,toomuchsystemload,faulty

alternator,orcorrodedconnectors.Powerissuppliedfor

thepowerdistributionboxnearthedriversleftfootthrough

theIPharnesstothecontrolunitbehindthecupholder.

ThisDTCwillberecordedwhentheCANsignalforthe

outsideairtemperaturesensorfromtheengineisinthe

invalidrange.Somepossiblecausesforthisarebroken

wireorsensorfailure.

Modifyingthesensororitslocationcanimpactvehicle

performance,emissions,and/orreliability.

openattheoutsideairtemperaturesensorinput.Some

possiblecausesforthisareabrokenwire,corrodedor

disconnectedconnector,orsensorfailure.

12-4

PM819023/KM815057(08/14/2012)

12

DTCInputReceived

By

17104 CECUOutsideAirTempShortinoutsideairtempcircuitThisDTCwillberecordedwhenthecontrolunitsees

17303 CECUExhaustTempOpeninexhausttempcircuitThisDTCwillberecordedwhenthecontrolunitsees

17304 CECUExhaustTempShortinexhausttempcircuitThisDTCwillberecordedwhenthecontrolunitseesa

17703 CECUTransmissionOilT empOpenintransmissionoiltemp

17704 CECUTransmissionOilT empShortintransmissionoiltemp

18409 CECUInstantaneousFuel

19009 CECUEngineSpeed

23731 CECUEngineVINVINmismatchedThisDTCwillberecordedwhenthecontrolunitseesa

24510 CECUOffsetofOdometerOdometeroffsethasbeen

24709 CECUEngineTotalHoursof

Item/SystemDescriptionDetailedDescription

ashorttogroundattheoutsideairtemperaturesensor

input.Somepossiblecausesforthisareapinchedwire,

waterinaconnector,orsensorfailure.

anopenattheexhausttempsensorinput.Some

possiblecausesforthisareabrokenwire,corrodedor

disconnectedconnector,orsensorfailure.

shorttogroundattheexhausttempsensorinput.Some

possiblecausesforthisareapinchedwire,waterina

connector,orsensorfailure.

ThisDTCwillberecordedwhenthecontrolunitseesan

circuit

circuit

Instantaneousfueleconomy

Economymessage

Message

Operation

messagemissing

EnginespeedmessagemissingThisDTCwillberecordedwhenthecontrolunitdoes

recalculated

Enginetotalhoursofoperation

messagemissing

openatthetransmissionoiltemperaturesensorinput.

Somepossiblecausesforthisareabrokenwire,corroded

ordisconnectedconnector,orsensorfailure.

ThisDTCwillberecordedwhenthecontrolunitseesa

shorttogroundatthetransmissionoiltemperaturesensor

input.Somepossiblecausesforthisareapinchedwire,

waterinaconnector,orsensorfailure.

ThisDTCwillberecordedwhenthecontrolunitdoes

notseetheInstantaneousFuelEconomymessagefrom

theengine,orwhenthemessagehastimedout.Some

possiblecausesforthisincludefaultywiringtotheengine

controllerorafaulty/misconguredenginecontroller.

notseetheEngineSpeedmessagefromtheengine,or

whenthemessagehastimedout.Somepossiblecauses

forthisincludefaultywiringtotheenginecontrollerora

faulty/misconguredenginecontroller .

mismatchbetweentheVINfromtheengineandtheVIN

storedinthecontrolunit.

Theinstrumentationsystemcontinuallycalculatesthe

odometerreadingusinginformationfromtheengine

ECU.ItstorestheoffsetbetweentheengineECUand

instrumentationsystem.Thisoffsetisrecalculatedifthe

engineECUorthecontrolunitarereplaced.ThisDTCwill

appearwhentheoffsetisrecalculated.

ThisDTCwillberecordedwhenthecontrolunitdoesnot

seetheEngineTotalHoursofOperationmessagefrom

theengine,orwhenthemessagehastimedout.Some

possiblecausesforthisincludefaultydatabuswiringto

theenginecontrollerorafaulty/misconguredengine

controller.

PM819023/KM815057(08/14/2012)

12-5

12

DTCInputReceived

By

24809 CECUT otalPowerT akeoff

44103 ChassisNodeGeneralT empOpeningeneraloiltempcircuitThisDTCwillberecordedwhenthecontrolunitseesan

44104 ChassisNodeGeneralT empShortingeneraloiltempcircuitThisDTCwillberecordedwhenthecontrolunitseesa

44203 ChassisNodeAuxTransmission

44204 ChassisNodeAuxTransmission

57803 ChassisNodeForwardDriveOil

57804 ChassisNodeForwardDriveOil

59631CruiseControlCruisecontrolrationalitycheckThisDTCwillberecordedwhenthedriverattemptstoset

59902CruiseControlInvalidinputfromcruisecontrolset

59631CruiseControlInvalidinputfromcruisecontrol

Item/SystemDescriptionDetailedDescription

Totalpowertakeoffhoursmessage

Hours

Temp

Temp

Temp

Temp

missing

Openinauxtransmissiontemp

circuit

Shortinauxtransmissiontemp

circuit

Openinforwarddriveaxleoiltemp

circuit

Shortinforwarddriveaxleoiltemp

circuit

switch

resumeswitch

ThisDTCwillberecordedwhenthecontrolunitdoes

notseetheT otalPowerT akeoffHoursmessagefrom

theengine,orwhenthemessagehastimedout.Some

possiblecausesforthisincludefaultydatabuswiringto

theenginecontrollerorafaulty/misconguredengine

controller.

openatthegeneraloiltemperaturesensorinput.Some

possiblecausesforthisareabrokenwire,corrodedor

disconnectedconnector,orsensorfailure.Thewiring

forthissensorrunsfromthechassisnodethroughthe

chassisandIPharnessestoaconnectorbehindtheright

handgaugepanel.

shorttogroundatthegeneraltemperaturesensorinput.

Somepossiblecausesforthisareapinchedwire,waterin

aconnector,orsensorfailure.Thewiringforthissensor

runsfromthechassisnodethroughthechassisandIP

harnessestoaconnectorbehindtherighthandgauge

panel.

ThisDTCwillberecordedwhenthecontrolunitseesan

openattheauxiliarytransmissionoiltemperaturesensor

input.Somepossiblecausesforthisareabrokenwire,

corrodedordisconnectedconnector,orsensorfailure.

ThisDTCwillberecordedwhenthecontrolunitsees

ashorttogroundattheauxiliarytransmissionoil

temperaturesensorinput.Somepossiblecausesforthis

areapinchedwire,waterinaconnector,orsensorfailure.

ThisDTCwillberecordedwhenthecontrolunitseesan

openattheforwarddriveaxleoiltemperaturesensor

input.Somepossiblecausesforthisareabrokenwire,

corrodedordisconnectedconnector,orsensorfailure.

ThisDTCwillberecordedwhenthecontrolunitseesa

shorttogroundattheforwarddriveaxleoiltemperature

sensorinput.Somepossiblecausesforthisareapinched

wire,waterinaconnector,orsensorfailure.

theSETorRESUMEbeforehehastouchedthebrake

andtheclutch.Thisfaultwillremainactiveuntilthe

keyswitchiscycled.

ThisDTCwillberecordedwhenthecontrolunitsees

aninvalidvoltagerangefromthecruisecontrolset

switch.Somepossiblecausesforthisareanintermittent

connectionattheswitch,corrodedorbrokenwireorbad

switch.

ThisDTCwillberecordedwhenthecontrolunitsees

aninvalidvoltagerangefromthecruisecontrolresume

switch.Somepossiblecausesforthisareanintermittent

connectionattheswitch,corrodedorbrokenwireorbad

switch.

12-6

PM819023/KM815057(08/14/2012)

12

DTCInputReceived

By

67805 CECUCVSG/MCSSupplyCVSG/MCSsupplyopenloadThisDTCwillberecordedwhenthecontrolunitseesan

67806 CECUCVSG/MCSSupplyCVSG/MCSsupplyshortedto

80404 CECUABSMode“TractorABSNotInstalled”input

70104CECUElectricOverAirElectricoverairswitch1shortto

70204CECUElectricOverAirElectricoverairswitch2shortto

70304CECUElectricOverAirElectricoverairswitch3shortto

70404CECUElectricOverAirElectricoverairswitch4shortto

70504CECUElectricOverAirElectricoverairswitch5shortto

70604CECUElectricOverAirElectricoverairswitch6shortto

70704CECUElectricOverAirElectricoverairswitch7shortto

70804CECUElectricOverAirElectricoverairswitch8shortto

82903 ChassisNodePrimaryFuelOpeninprimaryfuellevelcircuitThisDTCwillberecordedwhenthecontrolunitsees

Item/SystemDescriptionDetailedDescription

openloadonthepowersupplytotheCVSGbusandthe

MenuControlSwitch.Apossiblecauseofthisfailureisa

brokenwireleadingtothe2"gauges.Acommonsymptom

ofthisfaultisthatnoneofthe2"gaugesareworking.

ThisDTCwillberecordedwhentheseesashorttoground

ground

isshortedandABSsystemis

present.

ground

ground

ground

ground

ground

ground

ground

ground

ontheCVSGsupply.Somepossiblecausesforthisarea

pinchedwire,bentpinsonaCVSGorafailedCVSG.

ThisDTCwillberecordedwhenthecontrolunit“ABS

Installed”parameterisdisabledanditisreceiving

messagesfromanABSsystemonV -CAN.Ifthevehicle

istobeequippedwithABSenablethe“ABSInstalled”

parameter.IfthevehicleisnottobeequippedwithABS

removetheABScontrolunit.

ThisDTCwillberecordedwhenthecontrolunitsees

ashorttogroundattheelectricoverairswitch1input.

Somepossiblecausesforthisareapinchedwire,water

inaconnector,orswitchfailure.

ThisDTCwillberecordedwhenthecontrolunitsees

ashorttogroundattheelectricoverairswitch2input.

Somepossiblecausesforthisareapinchedwire,water

inaconnector,orswitchfailure.

ThisDTCwillberecordedwhenthecontrolunitsees

ashorttogroundattheelectricoverairswitch3input.

Somepossiblecausesforthisareapinchedwire,water

inaconnector,orswitchfailure.

ThisDTCwillberecordedwhenthecontrolunitsees

ashorttogroundattheelectricoverairswitch4input.

Somepossiblecausesforthisareapinchedwire,water

inaconnector,orswitchfailure.

ThisDTCwillberecordedwhenthecontrolunitsees

ashorttogroundattheelectricoverairswitch5input.

Somepossiblecausesforthisareapinchedwire,water

inaconnector,orswitchfailure.

ThisDTCwillberecordedwhenthecontrolunitsees

ashorttogroundattheelectricoverairswitch6input.

Somepossiblecausesforthisareapinchedwire,water

inaconnector,orswitchfailure.

ThisDTCwillberecordedwhenthecontrolunitsees

ashorttogroundattheelectricoverairswitch7input.

Somepossiblecausesforthisareapinchedwire,water

inaconnector,orswitchfailure.

ThisDTCwillberecordedwhenthecontrolunitsees

ashorttogroundattheelectricoverairswitch8input.

Somepossiblecausesforthisareapinchedwire,water

inaconnector,orswitchfailure.

anopenattheprimaryfuellevelsensorinput.Some

possiblecausesforthisareabrokenwire,corrodedor

disconnectedconnector,orsensorfailure.

PM819023/KM815057(08/14/2012)

12-7

12

DTCInputReceived

By

82904 ChassisNodePrimaryFuelShortinprimaryfuellevelcircuitThisDTCwillberecordedwhenthecontrolunitseesa

83003 ChassisNodeSecondaryFuelOpeninsecondaryfuellevelcircuitThisDTCwillberecordedwhenthecontrolunitsees

83004 ChassisNodeSecondaryFuelShortinsecondaryfuellevelcircuitThisDTCwillberecordedwhenthecontrolunitseesa

88609AdaptiveCruiseControlunitcannotreadmessages

91709 CECUHighResolution

97403ChassisNodeRemoteAcceleratorOpeninremoteacceleratorcircuitThisDTCwillberecordedwhenthecontrolunit

97404ChassisNodeRemoteAcceleratorShortinremoteacceleratorcircuitThisDTCwillberecordedwhenthecontrolunitseesa

102809 CECUT otalEnginePTOFuel

123109 CECUI-CANControlUnitcannotreadmessages

138703 CECUBrakeSaverOilTempOpeninbrakesaveroiltempcircuitThisDTCwillberecordedwhenthecontrolunitseesan

138704 CECUBrakeSaverOilTempShortinbrakesaveroiltempcircuitThisDTCwillberecordedwhenthecontrolunitseesa

Item/SystemDescriptionDetailedDescription

shorttogroundattheprimaryfuellevelsensorinput.

Somepossiblecausesforthisareapinchedwire,water

inaconnector,orsensorfailure.

anopenatthesecondaryfuellevelsensorinput.Some

possiblecausesforthisareabrokenwire,corrodedor

disconnectedconnector,orsensorfailure.

shorttogroundatthesecondaryfuellevelsensorinput.

Somepossiblecausesforthisareapinchedwire,water

inaconnector,orsensorfailure.

ThisDTCwillberecordedwhenthecontrolunitcannot

fromadaptivecruiseonV-CAN

Highresolutionvehicledistance

VehicleDistance

Message

UsedMessage

messagemissing

TotalenginePTOfuelused

messagemissing

fromclusteronI-CAN

readmessagesfromtheAdaptiveCruiseECU.Some

possiblecausesforthisareabrokenwire,corrodedor

disconnectedconnector,noterminatingresistors,no

powertotheAdaptiveCruiseECUorAdaptiveCruise

ECUfailure.

ThisDTCwillberecordedwhenthecontrolunitdoesnot

seetheHighResolutionVehicleDistancemessagefrom

theengine,orwhenthemessagehastimedout.Some

possiblecausesforthisincludefaultydatabuswiringto

theenginecontrollerorafaultyenginecontroller.

seesanopenattheremoteacceleratorinput.Some

possiblecausesforthisareabrokenwire,corrodedor

disconnectedconnector,orthrottlecontrollerfailure.

shorttogroundattheremoteacceleratorinput.Some

possiblecausesforthisareapinchedwire,waterina

connector,orthrottlecontrollerfailure.

ThisDTCwillberecordedwhenthecontrolunitdoes

notseetheTotalEnginePTOFuelUsedmessagefrom

theengine,orwhenthemessagehastimedout.Some

possiblecausesforthisincludefaultydatabuswiringto

theenginecontrollerorafaulty/misconguredengine

controller.

ThisDTCwillberecordedwhenthecontrolunitcannot

readmessagesfromthecluster.Somepossiblecauses

forthisareabrokenwire,corrodedordisconnected

connector,nopowertotheclusterorclusterfailure.

openatthebrakesaveroiltemperaturesensorinput.

Somepossiblecausesforthisareabrokenwire,corroded

ordisconnectedconnector,orsensorfailure.

shorttogroundatthebrakesaveroiltemperaturesensor

input.Somepossiblecausesforthisareapinchedwire,

waterinaconnector,orsensorfailure.

12-8

PM819023/KM815057(08/14/2012)

12

DTCInputReceived

By

138803 ChassisNodeTransferCaseOil

138804 ChassisNodeTransferCaseOil

148109 CECUV-CANControlunitcannotreadmessages

148209 CECUV-CANControlUnitcannotreadmessages

148309 CECUV-CANControlUnitcannotreadmessages

148702DimmerinvalidrangeThisiscausedbytheDimmerUporDimmerDownwires

148703 OpenindashdimmerinputcircuitThisDTCwillberecordedwhenthecontrolunitsees

148704 ShortindashdimmerinputcircuitThisDTCwillberecordedwhenthecontrolunitseesa

148707DimmerstuckThisiscausedbyeithertheDimmerswitchbuttonbeing

149106 Shortindashdimmeroutput#1

149206

CECUDashLightDimmer

Item/SystemDescriptionDetailedDescription

Openintransfercaseoiltemp

Temp

Temp

circuit

Shortintransfercaseoiltemp

circuit

fromABSonV-CAN

fromTransmissiononV-CAN

fromEngineonV-CAN

circuit

Shortindashdimmeroutput#2

circuit

ThisDTCwillberecordedwhenthecontrolunitseesan

openatthetransfercaseoiltemperaturesensorinput.

Somepossiblecausesforthisareabrokenwire,corroded

ordisconnectedconnector,orsensorfailure.

ThisDTCwillberecordedwhenthecontrolunitseesa

shorttogroundatthetransfercaseoiltemperaturesensor

input.Somepossiblecausesforthisareapinchedwire,

waterinaconnector,orsensorfailure.

ThisDTCwillberecordedwhenthecontrolunit

cannotreadmessagesfromtheABSsystem.Some

possiblecausesforthisareabrokenwire,corrodedor

disconnectedconnector,noterminatingresistors,no

powertotheABSsystemorABSECUfailure.

ThisDTCwillberecordedwhenthecontrolunitcannot

readmessagesfromthetransmissionECU.Some

possiblecausesforthisareabrokenwire,corrodedor

disconnectedconnector,noterminatingresistors,no

powertotheTransmissionorTransmissionECUfailure.

ThisDTCwillberecordedwhenthecontrolunit

cannotreadmessagesfromtheengineECU.Some

possiblecausesforthisareabrokenwire,corrodedor

disconnectedconnector,noterminatingresistors,no

powertotheengineorengineECUfailure.

reportinginvalidvoltage.

Checktheswitchandwiringfordamage

anopenatthedashlightdimmercontrolinput.Some

possiblecausesforthisareabrokenwire,corrodedor

disconnectedconnector,ordimmercontrolfailure.

shorttogroundatthedashlightdimmercontrolinput.

Somepossiblecausesforthisareapinchedwire,water

inaconnector ,ordimmercontrolfailure.

stuckUporDownfor20seconds.

Checktheswitchandwiringfordamage

ThisDTCwillberecordedwhentheseesashortto

groundonthe#1dimmeroutput.Somepossiblecauses

forthisareapinchedwire,waterinaconnector,or

dimmedcomponentfailure.Thisoutputcontrolsdimming

totheleftandrightsparebacklighting.

ThisDTCwillberecordedwhentheseesashortto

groundonthe#2dimmeroutput.Somepossiblecauses

forthisareapinchedwire,waterinaconnector,or

dimmedcomponentfailure.Thisoutputcontrolsdimming

tomuchoftheinstrumentilluminationandbacklighting.

PM819023/KM815057(08/14/2012)

12-9

12

DTCInputReceived

By

167502 CECUStarterMotor

176102 CECUDieselExhaustFluidDieselexhaustuidlevelmessage

176109DieselExhaustFluidDieselexhaustuidlevelmessage

176119DieselExhaustFluidDieselexhaustuidlevelmessage

234801

234803

234805

234806

234813

234831

235001 Leftorrightlowbeamoutput

235003Leftorrightlowbeamoutputshort

235005Leftorrightlowbeamoutputunder

235006Leftorrightlowbeamoutputover

235013Leftorrightlowbeamoutput

235031

ChassisNodeExteriorLighting-High

ChassisNodeExteriorLighting-Low

Item/SystemDescriptionDetailedDescription

Starterdisabledduetoovercrank

CooldownEnforce

Beam

Beam

protection

error

error

error

Leftorrighthighbeamoutput

generalerror

Leftorrighthighbeamoutputshort

topower

Leftorrighthighbeamoutput

undercurrentoropencircuit

Leftorrighthighbeamoutputover

current

Leftorrighthighbeamoutput

generalerror

Leftorrighthighbeamoutputnot

available

generalerror

topower

currentoropencircuit

current

generalerror

Leftorrightlowbeamoutputnot

available

ThisDTCwillberecordedwhentheallowedcranking

timehasbeenreachedandthestarterisdisabled.This

DTCwillgoawayandthestarterwillbere-enabledafter

15minutes.

ThisDTCwillberecordedwhenthecontrolunitreceives

aninvalidrangeonthedieselexhaustuidlevelmessage

fromtheengineECUordoesnotreceivethemessagein

atimelymanner.

ThisDTCwillberecordedwhenthecontrolunitreceives

aNotAvailablesignalonthedieselexhaustuidlevel

messagefromtheengineECUorwhenthemessagehas

timedout.Somepossiblecausesforthisincludefaulty

wiringtotheenginecontrollerorafaulty/miscongured

enginecontroller.

ThisDTCwillberecordedwhenthecontrolunitreceives

aninvalidrangeonthedieselexhaustuidlevel

messagefromtheengineECU.Somepossiblecauses

forthisincludefaultywiringtotheenginecontrollerora

faulty/misconguredenginecontroller .

ThissetofDTCswillberecordedwhenthereisaproblem

withoneoftheHighBeamcircuits.Thiscouldbecaused

byfailedbulbs,wiringharnessissues,orcorroded

connectors.

LefthighbeamoutputfromPin13oftheChassisNode

connectorA.

RighthighbeamoutputfromPin7oftheChassisNode

connectorA.

ThissetofDTCswillberecordedwhenthereisaproblem

withoneoftheLowBeamcircuits.Thiscouldbecaused

byfailedbulbs,wiringharnessissues,orcorroded

connectors.

LeftlowbeamoutputfromPin1oftheChassisNode

connectorA.

RightlowbeamoutputfromPin19oftheChassisNode

connectorA.

12-10

PM819023/KM815057(08/14/2012)

12

DTCInputReceived

By

236801 Leftfrontturnorleftfrontsideturn

236803Leftfrontturnorleftfrontsideturn

236805Leftfrontturnorleftfrontsideturn

236806Leftfrontturnorleftfrontsideturn

236813Leftfrontturnorleftfrontsideturn

236831

237001 Rightfrontturnorleftfrontside

237003Rightfrontturnorleftfrontside

237005Rightfrontturnorleftfrontside

237006Rightfrontturnorleftfrontside

237013Rightfrontturnorleftfrontside

237031

237201 Leftrearturn/stopoutputgeneral

237203Leftrearturn/stopoutputshortto

237205Leftrearturn/stopoutputunder

237206Leftrearturn/stopoutputover

237213Leftrearturn/stopoutputgeneral

237231

237401 Rightrearturn/stopoutputgeneral

237403Rightrearturn/stopoutputshortto

237405Rightrearturn/stopoutputunder

237406Rightrearturn/stopoutputover

237413Rightrearturn/stopoutputgeneral

237431

ChassisNodeExteriorLighting-Left

ChassisNodeExteriorLighting-

ChassisNodeExteriorLighting-

ChassisNodeExteriorLighting-

Item/SystemDescriptionDetailedDescription

FrontTurn

RightFrontTurn

Tractor/TruckLeft

RearTurn/Stop

Tractor/TruckRight

RearTurn/Stop

outputgeneralerror

outputshorttopower

outputundercurrentoropencircuit

outputovercurrent

outputgeneralerror

Leftfrontturnorleftfrontsideturn

outputnotavailable

turnoutputgeneralerror

turnoutputshorttopower

turnoutputundercurrentoropen

circuit

turnoutputovercurrent

turnoutputgeneralerror

Rightfrontturnorleftfrontside

turnoutputnotavailable

error

power

currentoropencircuit

current

error

Leftrearturn/stopoutputnot

available

error

power

currentoropencircuit

current

error

Rightrearturn/stopoutputnot

available

ThissetofDTCswillberecordedwhenthereisaproblem

withoneoftheLeftFrontTurncircuit.Thiscouldbe

causedbyfailedbulbs,wiringharnessissues,orcorroded

connectors.

LeftfrontturnoutputfromPin4oftheChassisNode

connectorB.

ThissetofDTCswillberecordedwhenthereisaproblem

withoneoftheRightFrontTurncircuit.Thiscouldbe

causedbyfailedbulbs,wiringharnessissues,orcorroded

connectors.

RightfrontturnoutputfromPin7oftheChassisNode

connectorB.

ThissetofDTCswillberecordedwhenthereisaproblem

withoneoftheLeftRearTurn/Stopcircuit.Thiscouldbe

causedbyfailedbulbs,wiringharnessissues,orcorroded

connectors.

Tractor/Truckleftrearturn/stopoutputfromPin13ofthe

ChassisNodeconnectorB.

ThissetofDTCswillberecordedwhenthereisaproblem

withoneoftheRightRearTurn/Stopcircuit.Thiscouldbe

causedbyfailedbulbs,wiringharnessissues,orcorroded

connectors.

Tractor/Truckrightrearturn/stopoutputfromPin2ofthe

ChassisNodeconnectorB.

PM819023/KM815057(08/14/2012)

12-1 1

12

DTCInputReceived

By

237801 Markerlampoutputgeneralerror

237803Markerlampoutputshorttopower

237805Markerlampoutputundercurrent

237806Markerlampoutputovercurrent

237813Markerlampoutputgeneralerror

237831

238201 Clearancelampoutputgeneral

238203Clearancelampoutputshortto

238205Clearancelampoutputunder

238206Clearancelampoutputover

238213Clearancelampoutputgeneral

238231

238801 Foglampoutputgeneralerror

238803Foglampoutputshorttopower

238805Foglampoutputundercurrentor

238806Foglampoutputovercurrent

238813Foglampoutputgeneralerror

238831

239001 Secondaryfoglampoutputgeneral

239003Secondaryfoglampoutputshort

239005Secondaryfoglampoutputunder

239006Secondaryfoglampoutputover

239013Secondaryfoglampoutputgeneral

239031

239102ChassisNodeBackupSwitchInvalidinputfrombackupalarm

239202ChassisNodeReverseSwitchInvalidinputfromreverseswitchThisDTCwillberecordedwhenthecontrolunitsees

ChassisNodeExteriorLighting-

CECUExteriorLighting-

ChassisNodeExteriorLighting-Fog

ChassisNodeExteriorLighting-

Item/SystemDescriptionDetailedDescription

ThissetofDTCswillberecordedwhenthereisaproblem

MarkerLamp

ClearanceLamp

Lamp

SecondaryFogLamp

oropencircuit

Markerlampoutputnotavailable

error

power

currentoropencircuit

current

error

Clearancelampoutputnot

available

opencircuit

Foglampoutputnotavailable

error

topower

currentoropencircuit

current

error

Secondaryfoglampoutputnot

available

muteswitch

withoneoftheMarkerLampcircuit.Thiscouldbe

causedbyfailedbulbs,wiringharnessissues,orcorroded

connectors.

MarkerlamprelaycontroloutputfromPin10ofthe

ChassisNodeconnectorA.

ThissetofDTCswillberecordedwhenthereisaproblem

withoneoftheClearanceLampcircuit.Thiscouldbe

causedbyfailedbulbs,wiringharnessissues,orcorroded

connectors.

ThissetofDTCswillberecordedwhenthereisaproblem

withoneoftheFogLampcircuit.Thiscouldbecaused

byfailedbulbs,wiringharnessissues,orcorroded

connectors.

FoglampsoutputfromPin15oftheChassisNode

connectorB.

ThissetofDTCswillberecordedwhenthereisaproblem

withoneoftheSecondaryFogLampcircuit.Thiscouldbe

causedbyfailedbulbs,wiringharnessissues,orcorroded

connectors.

SecondaryfoglamprelaycontroloutputfromPin18of

theChassisNodeconnectorC.

ThisDTCwillberecordedwhenthecontrolunitsees

aninvalidvoltagerangefromthebackupalarmmute

switch.Somepossiblecausesforthisareanintermittent

connectionattheswitch,corrodedorbrokenwireorbad

switch.

aninvalidvoltagerangefromthereverseswitch.Some

possiblecausesforthisareanintermittentconnectionat

theswitch,corrodedorbrokenwireorbadswitch.

12-12

PM819023/KM815057(08/14/2012)

12

DTCInputReceived

By

239601 Lefttrailerturnoutputgeneralerror

239603Lefttrailerturnoutputshortto

239605Lefttrailerturnoutputunder

239606Lefttrailerturnoutputovercurrent

239613Lefttrailerturnoutputgeneralerror

239631

239801 Righttrailerturnoutputgeneral

239803Righttrailerturnoutputshortto

239805Righttrailerturnoutputunder

239806Righttrailerturnoutputover

239813Righttrailerturnoutputgeneral

239831

240401Parklampgeneralerror

240403Parklampshorttopower

240405Parklampopencircuit

240406Parklampshorttoground

240413Parklampbadreferencevoltage

240431

257903 CECUBatteryCurrentOpeninammetersensorcircuitThisDTCwillberecordedwhenthecontrolunitseesan

257904 CECUBatteryCurrentShortinammetersensorcircuitThisDTCwillberecordedwhenthecontrolunitseesa

265106DomeLampDomelampovercurrentThisDTCwillberecordedwhenthecontrolunitsees

286302WiperInvalidrangehighspeedwiper

286303WiperOpeninwiperrelayoutputThisDTCwillberecordedwhenthecontrolunitseesan

ChassisNodeExteriorLighting-Left

CECUExteriorLighting-

CECUParkLamps

Item/SystemDescriptionDetailedDescription

ThissetofDTCswillberecordedwhenthereisaproblem

TurnTrailerLamp

RightTurnTrailer

Lamp

power

currentoropencircuit

Lefttrailerturnoutputnotavailable

error

power

currentoropencircuit

current

error

Righttrailerturnoutputnot

available

Parklampchassisnodelathches

fault

switchinput

withoneoftheLeftTurnTrailerLampcircuit.Thiscould

becausedbyfailedbulbs,wiringharnessissues,or

corrodedconnectors.

LeftturntraileroutputfromPin16oftheChassisNode

connectorB.

ThissetofDTCswillberecordedwhenthereisaproblem

withoneoftheRightTurnTrailerLampcircuit.Thiscould

becausedbyfailedbulbs,wiringharnessissues,or

corrodedconnectors.

RightturntraileroutputfromPin20oftheChassisNode

connectorC.

ThissetofDTCswillberecordedwhenthereisawiring

problembetweenthePowerdistributioncenterandthe

CECUconnectorEpin7.

openattheammetersensorinput.Somepossiblecauses

forthisareabrokenwire,corrodedordisconnected

connector,orsensorfailure.

shortattheammetersensorinput.Somepossiblecauses

forthisarepinchedwire,waterinaconnector,orsensor

failure.

overcurrentonthedomelampoutputcircuit.Some

possiblecauseforthisareashorttogroundinthecircuit,

apinchedwireorthewattageofthebulbsoninthecircuit

areexceedingtheoutputcapacity .

ThisDTCwillberecordedwhenthecontrolunitsees

aninvalidvoltagerangeonthehighspeedwiperswitch

input.Somepossiblecausesarebrokenwire,corrodedor

disconnectedconnectororfaultyturnstalkswitch.

openatthewiperoutputrelay .Somepossiblecauses

forthisareabrokenwire,corrodedordisconnected

connector.

PM819023/KM815057(08/14/2012)

12-13

12

DTCInputReceived

By

286304WiperShortinwiperrelayoutputThisDTCwillberecordedwhenthecontrolunitseesa

286307 CECUWiperOutofrangeonlowspeedwiper

286602WasherInvalidrangeonwasherpump

286603WasherOpeninwasherpumprelayoutputThisDTCwillberecordedwhenthecontrolunitsees

286604WasherShortinwasherpumprelayoutputThisDTCwillberecordedwhenthecontrolunitseesa

286612 CECUWasherSwitchShortinwasherpumpswitchinput

287204 CECUFlashtoPassSwitchShortinashtopassswitchinput

287304 CECUMarkerLampFlash

Item/SystemDescriptionDetailedDescription

shorttogroundatthewiperoutputrelay.Somepossible

causesforthisareapinchedwireorwaterinaconnector .

ThisDTCwillberecordedwhenthecontrolunitsees

switchinput

switchinput

orinputactiveformorethan15

seconds

orinputactiveformorethan10

seconds

Shortinmarkerlampashswitch

Switch

inputorinputactiveformorethan

10seconds

anoutofrangevoltagevalueonthelowspeedwiper

switch.Somepossiblecausesarebrokenwire,corroded

ordisconnectedconnectororfaultyturnstalkswitch.

ThisDTCwillberecordedwhenthecontrolunitseesa

invalidrangeofwasherpumpswitchinput.Somepossible

causesarebrokenwire,corrodedordisconnected

connectororfaultyturnstalkswitch.

anopenatthewasherpumpoutputrelay .Some

possiblecausesforthisareabrokenwire,corrodedor

disconnectedconnector.

shorttogroundatthewasherpumpoutputrelay.Some

possiblecausesforthisareapinchedwireorwaterin

aconnector.

ThisDTCwillberecordedwhenthecontrolunitsees

awasherpumpswitchinputactiveformorethan15

seconds.Thecontrolunitdeterminesthatawasher

pumpactiveforlongerthan15secondsmaybeashort

circuit.Somepossiblecausesforthisareapinchedwire,

corrosionorwaterintheconnectororfaultyturnstalk

switch.

ThisDTCwillberecordedwhenthecontrolunitseesthe

ashtopassswitchactiveformorethan10seconds.

ThecontrolunitdeterminesthataFlashtoPassswitch

inputactiveforlongerthan10secondsmaybeashort

circuit.Somepossiblecausesforthisareapinchedwire,

corrosionorwaterintheconnectororfaultyturnstalk

switch.

ThisDTCwillberecordedwhenthecontrolunitseesthe

markerlampashswitchinputactiveformorethan10

seconds.Thecontrolunitdeterminesthatamarkerlamp

ashswitchinputactiveforlongerthan10secondsmay

beashortcircuit.Somepossiblecausesforthisarea

pinchedwire,corrosionorwaterintheconnectororfaulty

markerlampashswitch.

12-14

PM819023/KM815057(08/14/2012)

12

DTCInputReceived

By

287404 CECUHighBeamT oggle

287604 ShortinturnsignalswitchThisDTCwillberecordedwhenthecontrolunitseesthe

287607

CECU

350905 CECUpowerinput1fault

351005

351105 MUX3-PPowerChassisNodePowerInput1FaultInspectwiringandfusingofChassisNodePowerpinA04

351131 MUX3-PPowerChassisNodePowerInput1FaultInspectwiringandfusingofChassisNodePowerpinA04

351205 MUX3-PPowerChassisNodePowerInput2FaultInspectwiringandfusingofChassisNodePowerpinA16

Item/SystemDescriptionDetailedDescription

ThisDTCwillberecordedwhenthecontrolunitseesthe

highbeamtoggleswitchinputactiveformorethan10

seconds.Thecontrolunitdeterminesthatahighbeam

toggleswitchinputactiveforlongerthan10secondsmay

beashortcircuit.Somepossiblecausesforthisarea

pinchedwire,corrosionorwaterintheconnectororfaulty

turnstalkswitch.

turnstalkinputofashortcircuitvalue(<253Ω).

turnstalkinputinaninvalidrange(253Ω<Input<270Ω

OR580Ω<Input<685Ω).

ThesetwoDTC'swillberecordedwhenthereisawiring

orfuseproblemfortheCECUpower,connectorApin2.

Switch

TurnSignalSwitch

CECUPower

Shortinhighbeamtoggleswitch

inputorinputactiveformorethan

10seconds

Outofrange-turnsignalswitchThisDTCwillberecordedwhenthecontrolunitseesthe

CECUpowerinput2fault

351231 MUX3-PPowerChassisNodePowerInput2FaultInspectwiringandfusingofChassisNodePowerpinA16

351305 MUX3-PPowerChassisNodePowerInput3FaultInspectwiringandfusingofChassisNodePowerpinB01

351331 MUX3-PPowerChassisNodePowerInput3FaultInspectwiringandfusingofChassisNodePowerpinB01

351405 MUX3-PPowerChassisNodePowerInput4FaultInspectwiringandfusingofChassisNodePowerpinB10

351431 MUX3-PPowerChassisNodePowerInput4FaultInspectwiringandfusingofChassisNodePowerpinB10

369602AftertreatmentShortinwasherpumprelayoutputThisDTCwillberecordedwhenthecontrolunitseesboth

regenerationforceandinhibitswitchesareactiveatthe

sametimeformorethan0.5sec.Somepossiblecauses

forthisareabrokenregenerationswitchonthedashor

wiringforthesecircuitsshortcircuitedtogetherbehind

thedash.

369709AftertreatmentDieselparticulatelterlamp

messageerror

369809AftertreatmentExhaustsystemhightemperature

lampmessageerror

ThisDTCwillberecordedwhenthecontrolunitseesan

invalidrangeonthedieselparticulatelterlampmessage

fromtheengineECUorwhenthemessagehastimedout.

Somepossiblecausesforthisincludefaultywiringtothe

enginecontrollerorafaultyenginecontroller .

ThisDTCwillberecordedwhenthecontrolunitseesan

invalidrangeonthehotexhaustsystemtemperaturelamp

messagefromtheengineECUorwhenthemessagehas

timedout.Somepossiblecausesforthisincludefaulty

wiringtotheenginecontrollerorafaultyenginecontroller.

PM819023/KM815057(08/14/2012)

12-15

12

DTCInputReceived

By

370309AftertreatmentRegenerationinhibiteddueto

512505 MUX3-PPowerChassisNodePowerInput5FaultInspectwiringandfusingofChassisNodePowerpinB19

512531MUX3-PPowerChassisNodePowerInput5FaultInspectwiringandfusingofChassisNodePowerpinB19

512605 MUX3-PPowerChassisNodePowerInput6FaultInspectwiringandfusingofChassisNodePowerpinC19

512631MUX3-PPowerChassisNodePowerInput6FaultInspectwiringandfusingofChassisNodePowerpinC19

512705 MUX3-PPowerChassisNodePowerInput7FaultInspectwiringandfusingofChassisNodePowerpinB18

512731MUX3-PPowerChassisNodePowerInput7FaultInspectwiringandfusingofChassisNodePowerpinB18

512805 MUX3-PPowerChassisNodePowerInput8FaultInspectwiringandfusingofChassisNodePowerpinC15

512831MUX3-PPowerChassisNodePowerInput8FaultInspectwiringandfusingofChassisNodePowerpinC15

524502 CECUDieselExhaustFluidDieselexhaustuidtelltale

524509DieselExhaustFluidDieselexhaustuidtelltale

524519DieselExhaustFluidDieselexhaustuidtelltale

524602 CECUDieselExhaustFluidDieselexhaustuidinducement

524609AftertreatmentAftertreatmentsystemoperator

524619AftertreatmentAftertreatmentsystemoperator

CANTroubleshootingProcedures

Item/SystemDescriptionDetailedDescription

ThisDTCwillberecordedwhenthecontrolunitsees

inhibitswitchmessageerror

messageerror

messageerror

messageerror

severityerror

inducementseveritymessage

error

inducementseveritymessage

error

aninvalidrangeontheregenerationinhibiteddueto

inhibitswitchmessagefromtheengineECUorwhenthe

messagehastimedout.Somepossiblecausesforthis

includefaultywiringtotheenginecontrollerorafaulty

enginecontroller.

ThisDTCwillberecordedwhenthecontrolunitreceives

aninvalidrangeonthedieselexhaustuidtelltale

messagefromtheengineECUordoesnotreceivethe

messageinatimelymanner.

ThisDTCwillberecordedwhenthecontrolunitreceives

NotAvailableSignalonthedieselexhaustuidtelltale

messagefromtheengineECUorwhenthemessagehas

timedout.Somepossiblecausesforthisincludefaulty

wiringtotheenginecontrollerorafaultyenginecontroller.

ThisDTCwillberecordedwhenthecontrolunitreceives

aninvalidrangeonthedieselexhaustuidtelltale

messagefromtheengineECU.Somepossiblecauses

forthisincludefaultywiringtotheenginecontrollerora

faultyenginecontroller.

ThisDTCwillberecordedwhenthecontrolunitsees

ainvalidvaluefromtheJ1939networkforOperator

InducementSeverity.

ThisDTCwillberecordedwhenthecontrolunitreceived

aNotAvailablesignalontheaftertreatmentoperator

inducementseveritymessagefromtheengineECUor

whenthemessagehastimedout.Somepossiblecauses

forthisincludefaultywiringtotheenginecontrollerora

faultyenginecontroller.

ThisDTCwillberecordedwhenthecontrolunit

receivedaninvalidrangeontheaftertreatmentoperator

inducementseveritymessagefromtheengineECU.

busesalongwithacomplexarrangementof
sensorsandcontrollers.Thetechnicianshould

Introduction

beabletotroubleshootanissueprovidedthatthe
technicianhasbasicexperienceintroubleshooting

Thefollowingowchartsareprovidedtohelp
thetechnicianwithtroubleshootingaCAN

instrumentationandhasamulti-meteramongst
thetypicalshoptools.

databusissue.ThevehiclehasmultipleCAN

12-16

PM819023/KM815057(08/14/2012)

12

Inadditiontothecharts,therearelargerscale
diagramsoftheCANdatabusavailabletoprint
andmarkupwithmultimetervalues.

TerminatingResistorTestProcedure

Todetermineifaninlineresistorisworking,locate
theresistor.Theresistorsareshownonthe
followingdiagrams.Iftheresistorisoutsidethe
boxthatrepresentsacontroller,thentheresistor
isinline.

Oncearesistorhasbeenphysicallyfound,
disconnectresistorsfromtheresistorholdersand
testresistance(approximately120ohm)ofeach
resistoracrossterminalsasshown.

PM819023/KM815057(08/14/2012)

12-17

12

DataCollection

12-18

PM819023/KM815057(08/14/2012)

DiagnosingtheVCANTrunk

12

PM819023/KM815057(08/14/2012)

12-19

12

12-20

PM819023/KM815057(08/14/2012)

DiagnosingtheVCANBranch

12

PM819023/KM815057(08/14/2012)

12-21

12

DiagnosingDevicesonaCANLine

12-22

PM819023/KM815057(08/14/2012)

DiagnosingtheECAN

12

PM819023/KM815057(08/14/2012)

12-23

12

12-24

PM819023/KM815057(08/14/2012)

DiagnosingtheTCAN

12

PM819023/KM815057(08/14/2012)

12-25

12

12-26

PM819023/KM815057(08/14/2012)

DiagnosingtheCCAN(without MultifunctionSteeringWheel)

12

PM819023/KM815057(08/14/2012)

12-27

12

12-28

PM819023/KM815057(08/14/2012)

DiagnosingtheCCAN(with MultifunctionSteeringWheel)

12

PM819023/KM815057(08/14/2012)

12-29

12

12-30

PM819023/KM815057(08/14/2012)

DiagnosingtheACAN(withPACCAR MXengine)

12

PM819023/KM815057(08/14/2012)

12-31

12

12-32

PM819023/KM815057(08/14/2012)

DiagnosingtheICAN

12

PM819023/KM815057(08/14/2012)

12-33

12

12-34

PM819023/KM815057(08/14/2012)

DiagnosingtheBCAN,DCANorFCAN

12

PM819023/KM815057(08/14/2012)

12-35

12

12-36

PM819023/KM815057(08/14/2012)

12

PM819023/KM815057(08/14/2012)

12-37

12

12-38

PM819023/KM815057(08/14/2012)

LocatingaFailedResistororanOpen BetweenTwoResistors

12

PM819023/KM815057(08/14/2012)

12-39

12-40

PM819023/KM815057(08/14/2012)